Chevy 350 Bogs On Acceleration

We had to pump the gas several times to get the rpm's up, then let out the clutch and off we went. From day one, the car has had engine noise, safety issues like bad seat belt, broken door hinge, head lights with big. But any time I just mash the pedal, at any speed or in neutral, it stumbles for half a sec and then takes off. I have a 2000 Chevy Silverado LS that was hard to start. the engine bogs and backfires at mid to high-speed acceleration. at stop lights if the air is off the car will pick up and go discently. Also it didn't seem like the motor was bogging but just no power. Chevy Venture Van Battery Goes Dead Chevy Venture Van. 4 GSI/DP Volvo Penta, 454 engine 1998 27 foot Doral, well last week I idled out of the bay which it ran just fine for about five miles then I pulled back to do a little trolling, after an hour I decided to pick it up and move to another spot and noticed that I couldn't get on plan or accelerate over 2. It was pulling hard up to about 50MPH. Acceleration problem-1989 Chevy 350 Results 1 to 6 of 6 Discuss Acceleration problem-1989 Chevy 350 in the alt. I got a 94 Chevy 350 motor it starts fine and runs fine but when I excelerate and give it a lot of gas it bogs down. missing under load * update found problem * stalling,or a bog upon acceleration,they dont usually cause poor running once your past idleyou may want to be sure. 76 Chevy Nova with 406 small block and new carburetor, sputters on hard acceleration? Help? I have a 1976 Nova with a completely brand new rebuilt 406 Small block. It was running fine but began backfiring from the carb. Removing a vacuum line off of the intake manifold helps idel. Drive to third gear with normal acceleration Accelerate from 35 MPH at WOT until passing 4,500 RPM A slight and smooth increase in power should be felt at approximately 4,500 RPM. I have an 88' Chevy 1500 truck. If you want to submit your truck, make sure it meets the criteria. You would hit the throttle and it would sputter and then go. We started by driving the truck up and down a few backroads to get an idea of baseline throttle response and acceleration. 7L Throttle/Bog Issue Had to be steady on acceleration so you could get the right fuel to air ratio). Bold design and vibrant new colors like Caribbean Blue Metallic, † Orange Burst Metallic, † Raspberry, † and Passion Fruit make Spark the subcompact car that’s easy on the eyes and hard to ignore. In this tech article HOT ROD performs a muscle car engine shootout comparing the hottest small-blocks from Ford and Chevy to find out who was truly king of the hill - Hot Rod Magazine. New Rochester Carburetor Fits 1974-1977 Chevy Truck 350 454 Eng Manifold Choke. I mean bad. Sbc lean bog on acceleration Discussion in ' What I have is a rebuilt small block Chevy 350 bored. Replaced erg, plugs, wires, oxy, filters. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. when i accelerate it acts like it is losing power and it bucks 2 or 3 time then it runs pretty well. Part 1: Testing MSD’s Atomic EFI In a Big-Block Chevy By Bobby Kimbrough March 01, 2012 We were offered the rare opportunity of testing a new electronic fuel injection system – an award winning fuel injection system, as soon as MSD Ignition began shipping the Atomic EFI conversion kit. ? on acceleration. my 1994 Chevy 1500 350's rpm gauge keeps serging up and down It also sputters during acceleration and at 55 60 mph it bogs down or surges in power and speed. 0 was swapped out to a chevy 350 about 5-6 years ago. how do i check to see if the vaccum advance is working properly? i want to check all the possiblitys it could be before i go and tear down the carb and rebuild it. 7L V8 engine with 150k miles on it. Stuck it on my Airgap intake and its bogging right off the line. Today I drove it and it stalled at a light. It can cause bogging down on hard acceleration and can affect the shifting of the transmission. I have a 1991 5. for little noticeable difference in. Research and compare vehicles, find local dealers, calculate loan payments, find your car. I also checked and the tranny fluid and it is clean and full. Bogging can be a result of a lean setting where not enough fuel is entering the combustion chamber for the motor to run properly. Or a plugged exhaust. Within the last two camping trips my 2001 Chevy 8. Acceleration problem-1989 Chevy 350 Results 1 to 6 of 6 Discuss Acceleration problem-1989 Chevy 350 in the alt. It was pulling hard up to about 50MPH. These are Brand new, not. No other form of power generation comes close to deliver- ing so much horsepower for so little money. Thread starter The bogging/hesitation only happens when I'm traveling at 40ish mph. Be careful if that's the problem engine will be running WOT. "Hesitation," noun, from nominative Latin "haesitatio," meaning "irresolution, uncertainty or indecision. This goes for all vortec 4. The boat was bought after the 4cylinder omc 3. That's a long story from when my project began. I would also look at the secondary air valve. The MIL was on and. Now it accelerates on its own and is very hard to brake and stop. Removing a vacuum line off of the intake manifold helps idel. When running/full throttle/bog, have someone close the upper plates with their finger very slowly to reduce air. Cure The Bog And Sluggish Response On Your Holley Four-Barrel Carburetor By Properly Adjusting The Accelerator Pump Assembly. remove valve covers. I have a 1992 s10 blazer, 4door, 4WD, 4. Or a plugged exhaust. 7L) userpete1037. chevy forum at Car Dealer Forums; Truck is a 1989 ¾ ton with 350 engine. then while i am driving normally and trying to keep up to speed with a little. Problem is engine starts and idles fine but as soon as you give it gas it dies everytime. Used 2014 Buick Encore from Hoffpauir Inc. Newly built Chevy 350 (96-99. It will sputter, then regain acceleration. I will try and give some more detail here. Bogging: Again, not a technical term but commonly used. Used 2014 Buick Encore from Hoffpauir Inc. Please post if you fined the fix as I will if I do. Hi, I recently got a car with a Holley carburetor on it, and first of all I can't find it listed anywhere. I have a 2000 Chevy Silverado LS that was hard to start. Once it transitions into 2nd, the car drastically reduces its acceleration power, leaving me behind of passing cars. 1988 c1500 with 350 bogging down on acceleration. Engine light would turn off after three days when normal driving. 1999 Chevy Silverado - Sluggish Acceleration? I'm wondering if there's a problem somewhere like bad intake sensors or something. The suv attempts to keep going causing hard braking until about 5mph when it stops the acceleration all at once making the suv brakes to lock up from all the pressure being applied to stop. (Three types, if you count injector pulse, but injection timing on gasoline-powered busses is tied to ignition timing and is not separately adjustable so I will ignore it, as should you. Discuss 95 Chevy 350 TBI acceleration problems in the alt. 06-19-2009, 08:32 PM which would explain the bogging down when warm and the backfiring due excessive fuel. (1990 Chevrolet C1500) Replaced cam sensor, crank sensor, tps, egr, distributor cap and rotor, ignition control module, timing chain, spark plugs and wires, oxygen sensor. A bad knock sensor causes a decrease in acceleration and fuel mileage. New Rochester Carburetor Fits 1974-1977 Chevy Truck 350 454 Eng Manifold Choke. Once I reach 25, everything seems normal. Chevy silverado 5. The same tune setting that might bog like crazy in an Imperial or a T&C Wagon will not bog in a 440 Dart with 4:10 gears and a 3500 stall converter. Or a plugged exhaust. (Searched for parts for 1999 Chevy. In early fall the truck started making what I can only describe as a mild and inconsistent "stutter" upon accelerating between 40-50 MPH. It has trouble idling on its own and bogs down when you try to catch it giving it acceleration. Another cause of blue smoke is bad valve stem seals. messages on the Chevy Impala SS Forum. how do i check to see if the vaccum advance is working properly? i want to check all the possiblitys it could be before i go and tear down the carb and rebuild it. Esp on the Vortec 350 trucks in 3/4 and 1. Also it didn't seem like the motor was bogging but just no power. 1964 Chevy 4x4 Truck, 350 Chevy. the engine bogs and backfires at mid to high-speed acceleration. What could be causing this extra load on the engine? What could it be in the compressor that is so much resistance?. He installed it and put a 600 eddy on and never got rid of the bog. My buddie had bad acceleration and huge power lost on. I have a 1993 Chevy K1500 4x4 350 Auto. If I floor it in idle it falls on its face around 3800 to 4000 rpm it falls and spudders. RV with Chevy 454 engine problems to help but still bogs out going up hill,loses power. all original harness came out of the suburban and straight into my buggy. Re: chevy 350 cutting out during acceleration. I have a 1992 s10 blazer, 4door, 4WD, 4. We want nice clean acceleration from idle to full throttle, with no stumbling or flat spots. Similar symptoms can be caused by a weak fuel pump. Engine Vibration Causes - Free Auto Repair Tips July 25, 2009 4:51 pm dennisb - Auto Tool Sales DIY , Drivetrain and Noises , How To Auto Repair This Kia Rio had a severe engine vibration, see the picture below for the cause. 7 TBI, when im going up a steep hill or basically any hill the engine boggs reallly bad. Although it certainly could be other things, I'd look into the possibility that it might be time to rebuild the carbs. If your car or truck is equipped with a Holley four barrel carburetor and stumbles upon acceleration, more than likely the carburetor needs an adjustment to the accelerator pump assembly. If the O2 sensor is bad, it should show that code, too- whether it can lean the mixture enough to cause knock is almost academic, but on hard acceleration, it could be base timing, IAC, Knock Sensor, or possibly the ECT sensor, although I didn't see anything about hard starting when hot. Chevy silverado 5. 1988 chevy 1500 350 tbi bogs down with acceleration or under load and hills - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. They know their way under GM hoods because GM Factory Diagnostics puts data directly from your vehicle right at their fingertips. Please post if you fined the fix as I will if I do. My truck bogs down (and tries to die) when I give it gas to accelerate off of a stop. g, a 90-degree corner in town), and virtually whenever we would call for acceleration. Edelbrock Sputtering and Bog at WOT Acceleration! V8 Discussion. On FI, move the dial or map, on a carb, change the squirter or pump cam. 7 leter vortec. It was running great when I brought itIt was running great when I brought it. My son is 17 and devistated to already be having issues with this vehicle. any sort of bogging, can and is mostly cause by spark plugs that are Worn out! if you rev your engine alot or you replace the plugs many months or cant remember. Made it have shitty acceleration, and spit back through the carb. If you have installed a Fuel Injection system in your vehicle and are having some initial issues here is a quick checklist to work from to get you started. Can anyone tell me were to start trouble shooting, It also has a spark in the dark up by the distributer cap 1 Answer. In most situations, the best performance for most vehicles is around 12. Fingerlakes 4x4 Club is a 4x4 club based out of Rochester, NY and covering the Western New York area. Also it didn't seem like the motor was bogging but just no power. Oxygen O2 Sensor Circuit Low Voltage (Bank 2, Sensor 1) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. The total for them to diagnose it costing $90 and the parts + labour all came to a total of $582 from AAA (Automark Car Center) they charged me a total of $350 just for the EGr Valve. DO YOU REMEMBER THE OLD ROCHESTER QUADRAJET? BE THE FIRST TO OWN THE NEW UPDATED VERSION OF THE OLD ROCHESTER QUADRAJET IN OVER 20 YEARS!!!! All the other EBay sellers claim to have new units, but they are just rebuilt units and claiming there new. A first it would just be occasionally, at a light upon acceleration it would bog down, and backfire from the carb, but would keep going and accelerate fine. But it doesn't have to be. Sbc lean bog on acceleration Discussion in ' What I have is a rebuilt small block Chevy 350 bored. 350 tbi 4x4 Sunurban engine. Another cause of blue smoke is bad valve stem seals. It was running fine but began backfiring from the carb. It currently is sitting there and they said they tried to replicate the problem, but of course it didn't do it again. We tried a known good quadrajet off another car that was running fine and it still did the same. As a service to Dallas Area Pontiac Association members and in the spirit of the Pontiac Southern Nationals, this article has been prepared with the hope that it will help enthusiasts optimize their Quadrajet carbs for performance. I'm liking the DFCO, it doesn't have any popping and banging on deceleration, there is no smoke on acceleration and the car is obviously running much leaner now as it was very smelly/running rich beforehand. Cure The Bog And Sluggish Response On Your Holley Four-Barrel Carburetor, By Properly Adjusting The Accelerator Pump Assembly If your car or truck is equipped with a Holley four barrel carburetor and stumbles upon acceleration, more than likely the carburetor needs an adjustment to the accelerator pump assembly. These are Brand new, not. If I floor it in idle it falls on its face around 3800 to 4000 rpm it falls and spudders. I had a diagnostic and they told me on my 94 Chevy Blazer that it was my EGR Valve. 7 TBI, when im going up a steep hill or basically any hill the engine boggs reallly bad. 350 TBI acceleration problem Engine & Drivetrain. unplug distributor power wire and have someone turn it over for ya. bog when punched from a stop I am running a carb he built on my 350 with vortec heads, headers, cammed up, etc and it's about 780 cfm. Once engaged in gear (brake fully depressed), the idle hesitates and drops even before the truck is moving (forward or reverse). Can anyone tell me were to start trouble shooting, It also has a spark in the dark up by the distributer cap 1 Answer. 2004 Indmar Assault 5. Autoblog brings you car news; expert reviews of cars, trucks, crossovers and SUVs; and pictures and video. Have replaced distributor with rebulilt, new wires, plugs, coil, replaced carburator with a rebuilt. (That’s a 420a right) anyways. If this is the one with the Chevy 350 motor with electronic ignition, you may need a new water pump. Learn about this problem, why it occurs, and how to fix it. This is not a Vortec engine. Sign up here! Email This Post: Auto Repair Home>> Truck but shouldn't cause it to die or bog on acceleration. Newly built Chevy 350 (96-99. 06-19-2009, 08:32 PM which would explain the bogging down when warm and the backfiring due excessive fuel. If I floor it in idle it falls on its face around 3800 to 4000 rpm it falls and spudders. Answer: By watching and listening to your video, it looks and sounds like that when you hit the throttle, it bogs down real bad, then when you let off it a little, it revs up. 7L 350 TBI with 109k miles on it. It currently is sitting there and they said they tried to replicate the problem, but of course it didn't do it again. 7L TBI and 193k miles on her. Pumping the gas does not help. New Rochester Carburetor Fits 1972 Chevy Car 350 Engines Manifold Choke. in Lampasas, TX, 76550. 7 vortec sluggish, loss power. If there is no gasoline in the bowl, the pump will not work; and this would give a false result. But any time I just mash the pedal, at any speed or in neutral, it stumbles for half a sec and then takes off. It doesn't sound like it's causing issues, but then, I also don't quite know how to check max advance. if the pressure drops, its either your fuel pump or your injectors. 5 turns from bottom w/ 67 jets. 7 bogs/backfires when I give it gas. Hello, I am hiving a issue that I have been trying to fix for some time now, from a stop in hard acceleration my car bogs very bad. 350 tbi 4x4 Sunurban engine. Chevy 350 no power HELP!! Does the car hesitate or bog off the line? if so it could be carb related. dont think it went to engines that new but possible. It recently developed a hesitation/bog/backfire upon acceleration. Crower builds performance racing parts from camshafts to crankshafts. No excessive valve lifter noise. The bogging and/or stall can be minimized quite often if I click on the full choke switch at the same time I increase the throttle. I would go to accelerate while going down the road and it would hesitate and bog down. Edelbrock is the most respected name in performance. in Lampasas, TX, 76550. I have a 2006 Jetta that seems to have "flat" spots during acceleration. Reply 1: scan for codes and check. Re: chevy 350 cutting out during acceleration. This is what I am experiencing. The idle is stable and it revs cleanly when the car is out of gear with no load. This paragraph applies to an instantaneous bog, hesitation, or stumble upon acceleration. it bogs on acceleration dont no the cause - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Motor had no issues until I started it after sitting in the garage for 1-year, runs rough & "backfires" through 1 side of the header exhaust (passenger). how do you get the pulley off a earlier model Chevy 350 power steering pump? TY by purestock0 (5/6/2007) how can i change an original car stereo from a 1992 grand marquis,need to know about each by ricardo vega (3/21/2007) where is the temp. Autopartswarehouse. I have a 2006 Jetta that seems to have "flat" spots during acceleration. When you took off, it would buck and carry on and try to fall on it's face during acceleration. Problem is engine starts and idles fine but as soon as you give it gas it dies everytime. Why would a Chevy 350 sputter on acceleration? Why does A CHEVY 350 engine run flawless at idle but bog and sputter at wide open throttle? What would cause a 76 model 350 Chevy to run bad. The only thing different right now we have been having a. My '57 Chevy Bel Air Sport Coupe has a bad hesitation problem upon acceleration from a stand still or very slow speed. DO YOU REMEMBER THE OLD ROCHESTER QUADRAJET? BE THE FIRST TO OWN THE NEW UPDATED VERSION OF THE OLD ROCHESTER QUADRAJET IN OVER 20 YEARS!!!! All the other EBay sellers claim to have new units, but they are just rebuilt units and claiming there new. In any case, loosen it until it bogs and 1/8 turn back from that and you should be right. I have an idea, but I'd like to poll the group. The following parts have been replaced: spark plugs, wires, fuel filter, distributor, cap, rotor, pick up coil, map sensor, throttle position sensor, and idle air control valve. 7 TBI, when im going up a steep hill or basically any hill the engine boggs reallly bad. The boat was bought after the 4cylinder omc 3. I had a diagnostic and they told me on my 94 Chevy Blazer that it was my EGR Valve. DO YOU REMEMBER THE OLD ROCHESTER QUADRAJET? BE THE FIRST TO OWN THE NEW UPDATED VERSION OF THE OLD ROCHESTER QUADRAJET IN OVER 20 YEARS!!!! All the other EBay sellers claim to have new units, but they are just rebuilt units and claiming there new. With modern gasoline, it is quite possible the carburetor will be completely dry prior to starting. Other than that, it bogs off of idle. had a gas leak - GMC 2000 New Sierra 1500 question. Hello, I am hiving a issue that I have been trying to fix for some time now, from a stop in hard acceleration my car bogs very bad. Made it have shitty acceleration, and spit back through the carb. 4L60E in a 1996 CHEVY 1500. I have an 88' Chevy 1500 truck. acceleration Sputtering and popping was the first indication of trouble with mine (see: Another one not running). I have the same exact problem. I got a 94 Chevy 350 motor it starts fine and runs fine but when I excelerate and give it a lot of gas it bogs down. But any time I just mash the pedal, at any speed or in neutral, it stumbles for half a sec and then takes off. The SSR was dropped in 2006 and was not available as a 2007 model. I don't have engine bog at driving speeds, just aggressive acceleration just off idle. 7 vortec sluggish, loss power. As soon as I hit the gas engine bogs down. It just seems to bog down as if it hates gas. so I started with the simple and cheap tricks. When I step on the accelerator it bogs down and when I let up on the pedal just a little it will accelerate just fine for a bit then bog down and start shaking. when i accelerate it acts like it is losing power and it bucks 2 or 3 time then it runs pretty well. In some instances this can cause the machine to "bog" as if it were actually running out of gas. Made it have shitty acceleration, and spit back through the carb. My 95 chevy van 5. No sputtering or even any sign of firing. dont think it went to engines that new but possible. The truck completely bogs down randomly when I accelerate at a steady speed. engine temp has more to do with the setup than the particular engine - the first thing to try is a check in the rad with a good thermometer [don't let yer wife find out] to see how the gauge relates to reality next is to check the distance of the fan from the rad - you don't say what the engine is in have a shroud?. 94 Chevy Truck surges at idle in gear, loss of power under accel? I just bought a 1994 K2500 w/ 5. October 19th, 2012 2:49 PM by Jwhitworth. In some instances this can cause the machine to "bog" as if it were actually running out of gas. This is not a Vortec engine. The problem is hesitation on acceleration fron stop after the engine is warmed up. I'm liking the DFCO, it doesn't have any popping and banging on deceleration, there is no smoke on acceleration and the car is obviously running much leaner now as it was very smelly/running rich beforehand. okay so in my 87 chevy suburban with a 5. Our test Chevy Express 2500 passenger van came equipped with the 6. The same tune setting that might bog like crazy in an Imperial or a T&C Wagon will not bog in a 440 Dart with 4:10 gears and a 3500 stall converter. When I first get up in the morning the truck runs fine (it is a little sluggish). (1990 Chevrolet C1500) Replaced cam sensor, crank sensor, tps, egr, distributor cap and rotor, ignition control module, timing chain, spark plugs and wires, oxygen sensor. Acceleration: 12. Can anyone tell me were to start trouble shooting, It also has a spark in the dark up by the distributer cap 1 Answer. I run a Q-Jet and it runs great. Motor had no issues until I started it after sitting in the garage for 1-year, runs rough & "backfires" through 1 side of the header exhaust (passenger). Assuming all things are OK with the truck, would a bad fuel pressure regulator cause it to have no power at low rpm's? It always bogs under acceleration, wont peel out even when its wet, and must downshift to gain speed on the highway (but it still. Hopefully a kit will fix that. There are a couple of spots during acceleration where the car seems to have less power and when you get past them - it seems to have a rush of power - almost to the point of breaking the tires lose. The 92 - 93 trucks are equiped with a mechinical 3 speed automatic transmission. Service, parts, cost & recommendations from YourMechanic. had a gas leak - GMC 2000 New Sierra 1500 question. it only happens when the engine is at half on the temp gauge. It idles fine but on acceleration it bogs down pretty bad does it sound more like a fuel problem or distributor. Q: I have a 70 Chevy 350 in a 56 Chevy. bog and backfire mess? >. 01-01-11 06:34 PM - Post# 2025481 In response to strictlygm Take a look at 73-87 fullsize forum under 88 sud needs help Iam chasing the same problem, there is a few outhers on here with similar problems but no one ever posts if they have found a fix. Need some good advice on where to start folks! My '82 starts up and idles fine with no problems. It recently developed a hesitation/bog/backfire upon acceleration. In this tech article HOT ROD performs a muscle car engine shootout comparing the hottest small-blocks from Ford and Chevy to find out who was truly king of the hill - Hot Rod Magazine. We tried a known good quadrajet off another car that was running fine and it still did the same. If there is no gasoline in the bowl, the pump will not work; and this would give a false result. Chevy 305ci v8 idles fine but stumbles on acceleration. Why would a Chevy 350 sputter on acceleration? Why does A CHEVY 350 engine run flawless at idle but bog and sputter at wide open throttle? What would cause a 76 model 350 Chevy to run bad. If it bogs on 1/8 to 1/4 of a turn then it was about right and you should leave it. It recently developed a hesitation/bog/backfire upon acceleration. The truck runs great with the exception of bogging down when I step on the gas. Newer Than: Search this thread only; Search this forum only. I run a Q-Jet and it runs great. Guaranteed lowest price!. Why does my Chevy Malibu hesitate during acceleration, and. No change Second shop I stop at diagnosed as ignition coil pack #3 bad and #1 not far behind. I have a 1986 Rockwood Bayport Cl A, 27', on a 1985 Chevy P30 1 ton chassis. DESCRIPTION: These intake manifolds are designed to allow the use of single or dual carburetors on an early-style big block Chevy 348 or 409. If you want to submit your truck, make sure it meets the criteria. So essentially my engine was leaning out so bad under heavy acceleration it would bog down. Chevy silverado 5. on a very cold start, it starts fine, idles fine, when accelerated it will bogg down & spit & spudders to the point of all but dieingafter running for a few minutes it will take off and run witho. Also it didn't seem like the motor was bogging but just no power. Once it transitions into 2nd, the car drastically reduces its acceleration power, leaving me behind of passing cars. (1990 Chevrolet C1500) Replaced cam sensor, crank sensor, tps, egr, distributor cap and rotor, ignition control module, timing chain, spark plugs and wires, oxygen sensor. The most common cause for this is bad rings and is most likely from high mileage. tie it open and take it down the road if it runs. bog when punched from a stop I am running a carb he built on my 350 with vortec heads, headers, cammed up, etc and it's about 780 cfm. Bogging: Again, not a technical term but commonly used. In some instances this can cause the machine to "bog" as if it were actually running out of gas. The jets were only 65s My plugs looked like they had frost on em. Why would a Chevy 350 sputter on acceleration? Why does A CHEVY 350 engine run flawless at idle but bog and sputter at wide open throttle? What would cause a 76 model 350 Chevy to run bad. I've fiddled and fiddled with the accelerator pump (installed new parts adjusted and adjusted) and it still does it. Please post if you fined the fix as I will if I do. Chevy Impala SS Forum > 91-96 Impala/B-body > Engine Problems/Maintenance > Engine bogs down under heavy acceleration Reply. Why does my Chevy Malibu hesitate during acceleration, and. Using a multimeter, you can test the ohm ratings of both primary and secondary outlets on the waste-spark coil, and all of those on this truck tested well (between 0. Unplug mass air flow sensor restart truck and drive to see if helped. I have 2004 Chev Venture was having a battery issue with old battery not holding its charge. org, is the worlds largest automotive enthusiast group exclusively geared towards the General Motors GM J-car platform including the Chevrolet Cavalier, Pontiac Sunfire, Pontiac Sunbird, Pontiac J 2000, Oldsmobile Firenza, Buick SkyHawk and Cadillac Cimarron. 1989 chevy ,350 bro 1500. 7 350 chevy RWD C1500. I would also look at the secondary air valve. All that I could find was that it was a 600 cfm carb. I got the engine timed to the 6 before TDC GM spec. It currently is sitting there and they said they tried to replicate the problem, but of course it didn't do it again. my 1994 Chevy 1500 350's rpm gauge keeps serging up and down It also sputters during acceleration and at 55 60 mph it bogs down or surges in power and speed. 1964 Chevy 4x4 Truck, 350 Chevy. Actually, it can be a real challenge to get things to carburate right after something as simple as an exhaust pipe change. al,496HO MPI no modifications. Once I reach 25, everything seems normal. Marshburn Mud Bog Charles City 2008 1972 Chevy truck with 250 straight six drive around and acceleration by KH990j. Have a 1970's vintage crate motor (350/290HP) with headers & an Edelbrock 600 CFM carb (1406). but ive always had the problem with bogging but the backfire is new also when the car is just sitting in my drive way idleing i can press the gas and a little puff. when I accelerate quickly or matt it the truck will back fire through the tbi and will either stall completely. Car has a stock 283 CID V8 engine with a Rochester 4-bbl carb. Replaced erg, plugs, wires, oxy, filters. My buddie had bad acceleration and huge power lost on. The total for them to diagnose it costing $90 and the parts + labour all came to a total of $582 from AAA (Automark Car Center) they charged me a total of $350 just for the EGr Valve. 7L bogs down when accelerating. Within the last two camping trips my 2001 Chevy 8. It can cause bogging down on hard acceleration and can affect the shifting of the transmission. I have a 72 Nova w/ 305 SB out of an 85 C-10 pickup. Re: chevy 350 cutting out during acceleration. so far can't figure it out smells of gas, complete loss of power, bogs down under load, backfires, fuel pressure is over 50. The first vehicle we tested was a perfectly healthy '74 Chevy pickup, powered by a 350-inch mill with a 650-cfm double-pumper Holley carburetor. Linkage could also be a problem. Reply 1: scan for codes and check. I have 2004 Chev Venture was having a battery issue with old battery not holding its charge. M plugs in and still have same problem but it is not setting engine light on so far as before. I changed the valve cover gaskets put new plugs & wires, but now it is bogging down when I accelertate but it idles just fine. Hesitation during acceleration at high R. The 1967-69 Z/28 302 cubic inch small block V8 (Excerpted from Year One's Camaro Restoration catalog): In 1967, Chevrolet was busy promoting their new pony car, the Camaro, and part of the promotional efforts included racing the Camaro in the SCCA Trans-Am series. We started by driving the truck up and down a few backroads to get an idea of baseline throttle response and acceleration. OK, I bought someone Else's problem. I will try and give some more detail here. It does it from a stop at medium acceleration and it does it around 55 or so. It was running great when I brought itIt was running great when I brought it. Motor had no issues until I started it after sitting in the garage for 1-year, runs rough & "backfires" through 1 side of the header exhaust (passenger). New Rochester Carburetor Fits 1974-1977 Chevy Truck 350 454 Eng Manifold Choke.