Why is my Chevy Suburban bogging down on hard acceleration?

I have a 97 Suburban 5.7, 2wd. On hard acceleration it is bogging down like there is to much air, because sometimes it backfires. Or a plugged exhaust. I replaced the fuel pump-because it was bad in July.

What kind of acceleration does a Silverado Sierra have?

Durring light acceleration and at low speeds (city driving 35 mph or so) the truck seeems to run fine. However, when accelerating to highway speeds you notice that the truck will intermitantly jerk. In addition when crusing at highway speeds it runs fine, but anytime you have to lightly accelerate up a hill or something it starts again.

Why does my Silverado Sierra jerk at high speeds?

If you hammer it down, the truck smooths out. It appears to only happen durring light acceleration and at higher speeds. The best I can do to explain the jerking is that it feels as if is missing or being starved for fuel and about to run out. There are no check engine lights on in the truck.

What causes hesitation and stumbling in a 1990 Chevy c1500?

An expert that got 10 achievements. Re: 1990 chevy c1500 hesitation and stumbling during… Based on what you said, I would say the engine is starving for fuel. The computer has to be disabled to set timing – there should be a procedure for that. I would start with checking fuel pressure at the throttle body.

How much does a GMC Sierra engine hesitate during acceleration?

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. Our certified mobile mechanics can come to you now. GMC Sierra 1500 HD Engine hesitates during acceleration Inspection costs $89 on average.

What causes a truck to hesitate when accelerating?

Hesitates When Accelerating: the Initial Problem Was the Truck The initial problem was the truck stalled and died. 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.

Why is my Silverado 1500 chevrole so slow?

When an injector is clogged it can degrade the performance of the vehicle and the car may accelerate slowly or feel that it does not have enough power. Other symptoms include a rough idle, a vehicle that is hard to start and a decrease in fuel efficiency. A defective fuel pump will not supply enough fuel to the injectors.

Why is my GM Truck bogging down on hard acceleration?

If your not using delco plugs in this motor that can be a big contributor to your problem. GM vortec engines hate anything but vortec plugs and will do all kinds of weird things. And yes a clogged converter could cause this sort of thing to happen. Are the O2 codes upstream or downstream?

What causes a car to have a slow acceleration?

A slow accelerating car is the result of this incorrect data. It may also trigger the Check Engine light. Another cause of poor acceleration is a vacuum leak. To get the underlying cause of the problem resolved, you can request an engine diagnostic for slow acceleration.

What’s the problem with my 1997 Chevy Silverado?

I have a 1997 chevy 1500 siverado with a 5.7 vortec that has been having a problem for about 6 months now. The truck starts, idles, and revs normally and when accellarating slowly everything works just fine, but once you get past half throttle it falls on its face and acts like it has a clogged fuel filter or bad fuel pump.

Why is my Silverado Sierra sluggish to accelerate?

Have a KN intake system on it and keep it clean so I dont think that is it but I havent really done anything else as far as modifications. After accelerating it feels like it starts to let loose and eventually seems to get up to speed. Any ideas of what I can do? Get a custom tune. I would get an exhaust of some sort to help with the tune.

Why does my Silverado go slower past half Trottle?

The truck starts, idles, and revs normally and when accellarating slowly everything works just fine, but once you get past half throttle it falls on its face and acts like it has a clogged fuel filter or bad fuel pump. It actually goes slower than below half throttle. The bogging gets consistently worse the more throttle you give it.

What’s the problem with my Silverado 4.3 V6?

2007 Silverado 4.3 V6 -39,000 miles…no engine or tranny mods. No exhaust. I do have a K&N air filter that I just cleaned. I don’t think I have that MAF sensor on my intake like the more expensive trucks do. My problem seems to be a lack of power, like it just doesn’t want to go (V6 jokes aside).

What are the symptoms of a bad throttle position sensor?

A faulty throttle position sensor sends incorrect information to the ECM resulting in various issues in the engine, its performance, and fuel economy. Below are common symptoms of a faulty TPS. In most of the cases, all of these symptoms will show together making it easier to detect the faulty component. 1) Car Jerks

Can a bad check engine light be a bad TPS?

The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling. This is often the first ever symptom of a bad TPS. Using a code reader, you should be able to confirm whether a faulty TPS is the culprit or a different component.

Why does my car hesitate when I press the gas?

So when the stoplight turns from red to green, you punch the gas pedal, hoping to sail through the intersection a little, um, faster than usual. But instead of moving when you hit the gas pedal, your car hesitates. Juuust long enough for every car behind you to honk, flip you the bird, or angrily swerve around you.

Why does my 96 Tahoe have a different ECM?

I own a 96 Tahoe which has the same engine and the timing varies all the time to help increase power and use less fuel. It really sounds like the ECM is forgetting your hitting the throttle and not giving the engine the right amount of fuel.

What causes a Silverado Sierra to hesitate when accelerating?

As of today it starts fine and idle’s fine but when accelerating you can get up to speed by slightly pushing the pedal,but if you try to give it some gas anything above slightly pressing the pedal it hesitates and backfire once you push it to that point then it hesitates at any speed when trying to give it gas Just guessing here. 1. Spark Plugs?

Why does my Chevy 350 backfire under load?

When high performance turbo engines are under load they use an excessive amount of fuel which then is transferred into the exhaust system once the throttle is let up on and the engine is de-accelerating. This is a normal event and there is no problem with this condition.

Why does my car have a lean backfire?

The engine’s intake system depends on being completely sealed and free from leaks. If a main vacuum hose such as the power brake booster feed line has broken or failing off it will cause a lean backfire due to the additional air allowed into the engine intake manifold.

Why does my truck sputter and backfire when I accelerate?

Hey I’m new here and desperate for answers! I’m in the middle of PCSing with the Air Force to Japan and was getting my truck ready to sell, when it started acting up when I accelerated after right after starting the engine. een The engine starts and runs fine, when I leave for or from work.

What causes an intake back fire in a car?

If the check engine or service engine soon light in on scan the computer for trouble codes. This will help locate the system that is having a problem and needs repair. An intake back-fire explosion can be caused by the fuel air mixture being to lean when the engine is demanding power.

Why does the a / C blower slow down when the RPMs go up?

Why does the a/c blower slower down when the rpms go up c… When the truck sits and idles the blower works fine but when your driving and start to pull a hill the blower slows down when the truck is at about 3000 rpms nothing really is coming out of the vents as soon as you let off the accelerator it picks back up to normal

What happens if a Chevy 6.0 engine goes wrong?

In case any of these go wrong, an engine can misfire. There are quite grave consequences when a Chevy 6.0 engine misfires. The engine could get damaged even more, or you might experience more emissions or witness lesser fuel efficiency. This issue is known to be there in various Chevrolet models.

Why is my GM Vortec engine bogging down?

If so look into a vacuume leak or possibly bad igntion components. If your not using delco plugs in this motor that can be a big contributor to your problem. GM vortec engines hate anything but vortec plugs and will do all kinds of weird things. And yes a clogged converter could cause this sort of thing to happen.

Are there any problems with my GMC Vortec?

It has had cylinder 7 misfire, random misfire, rich, and 02 sensor codes. I have replaced all spark plugs (AC Delco), spark plug wires (summit), distributor cap & rotor (AC Delco), coil, driver side 02 sensor, fuel filter, fuel pump 1 year ago, and coolant temperature sensor.

What causes a Chevy C / K 1500 to bog down?

My truck bogs down (and tries to die) when I give it gas to accelerate off of a stop. There is often a backfire or two when this happens. Pumping the gas does not help. I basically have to crawl through any intersection until it picks up a bit of speed from idle. The truck idles smoothly, and it runs fine once it’s above about 5-10mph or so.

What to do if your GM Truck is bogging down?

Pull the distributor cap and check for corrosion on the underside or any signs of water. Be sure they’re clean and dry so you’re not cross firing and make sure the rotor is in good condition as well. Double check your wires for wear/melting while you’re at it too and it never hurts to check your plugs and gap.

Why is my GMC Sierra 1500 stalling out?

No change. Next, read somewhere that bad ground wire on Thermostat housing can cause ECM issues. Checked it, cleaned it off, verfied that contact wanhers are all steel and attract a magnet, reinstall the ground wire.

When does the engine bogs at full throttle?

The other issue may or may not be related to that problem, but this is also happening. When going up the slightest incline on the highway (overpass, for example) the engine bogs, it loses speed, and it has to kick down to a lower gear. It doesn’t do it at slower speeds like 50-55mph. Up around 65-70 it is very bad. RPMs at 65 mph is around 1700.

What to do when your car is bogging down on hard acceleration?

Sometimes if the converter gets plugged you can get it real hot by holding the engine speed around 2000 or just under. This will get the converter hot and if its plugged a lot of the time with will start to glow redish. Try this when its dark out so it’s easyer to see.

Is there a problem with my 2014 Chevy Silverado?

No one has added a helpful site for this 2014 Silverado 1500 problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code: Search CarComplaints.com for these popular complaint phrases…

Why does my Chevy Silverado not accelerate at high RPMs?

If your Silverado won’t accelerate, but the RPM’s go up it’s usually not going to be an engine related issue. Somehow, the power that your engine is creating is not making it to the rear wheels. This is typically a transmission related issue. Here are the most common cause of acceleration with the RPM’s going up: 1. Transmission Fluid Low

What was the problem with my Chevy Suburban?

I Had same problem with the ac unit… on 95 degree day teh ac decided to get stuck on heating us to like 95 degrees. even turnign off the blower didn’t work it still blew hot air at us… we turned car off and went to have dinner, (in middle of nowhere), we got back in and was fine. THen a year later and this cycle repeats itself.

How many miles does a 1987 Mitsubishi Starion run?

If the problem is intermittent, you may never find it. As another example, I still have a 1987 Mitsubishi Starion, which ran perfectly for 35,000 miles.

Can a Chevy Suburban LT die while driving?

I have a 2003 Suburban LT and it has started to die while driving and the Air Conditioner stops blowing cold air and the air gets hot as if the A/C weren’t on. I have replaced the battery and have had the alternator checked, it’s not the battery or the alternator, does someone know what it might be?

What kind of acceleration does a GMC Sierra have?

Alright I’m going to do the best I can to try and describe what is going on. I have a 2005 GMC Sierra with the 5.3L H.O. 139K. The truck starts and idles without an issue. Durring light acceleration and at low speeds (city driving 35 mph or so) the truck seeems to run fine.

Why does my Chevy Suburban not start after 10 hours?

It’s possible that a mechanic might replace the fuel pump in the tank without cleaning out the fuel tank and fixing the problem. This doesn’t explain why the car won’t start after sitting 10 hours with less than a half tank of fuel and will start if the tank is banged on the bottom.

Why does my Chevy 350 backfire when I let off the gas?

If it backfires when you let off the gas peddle it has air getting into the exhaust, either an exhaust gasket or cracked manifold before the catalytic converter or the emission control’s Air Injection system. The air injection check valves (STANDARD MOTOR PRODUCTS PT#AV7) are common failure parts.

Why does my Chevy Silverado lose engine power?

Keep reading to find at least one possible answer to “Why is my Chevy Silverado losing power?” Read More: How Can You Tell If Your Pickup Is Overloaded? If your GM truck occasionally loses the ability to accelerate and warns you of reduced engine power, that could be caused by a faulty throttle body.

What causes a 1994 Chevy C / K 1500 to bog down?

– CarGurus 1994 Chevy C1500 5.7 bogs/backfires when I give it gas. My truck bogs down (and tries to die) when I give it gas to accelerate off of a stop. There is often a backfire or two when this happens. Pumping the gas does not help. I basically have to crawl through any intersection until it picks up a bit of speed from idle. The truck

What causes a backfire on an unburned engine?

Unburned fuel then is allowed to pass into the exhaust system where it can backfire. The same type of problem can be caused by a worn out or damaged spark plug wire. A bad wire will make the spark’s travel difficult, weaken the spark, or simply push it into an adjacent wire or to ground, resulting in a backfire.

What’s the problem with my Chevy truck hesitation?

This is a very tricky problem to diagnose, and there could be a number of causes, which I go over in the video. It could be as simple as a clogged fuel filter, which would cost $20 to fix. Or it could be a very expensive fix it like a catalytic converter or a fuel pump.

What to do if your Silverado is bogging down?

EGR or fuel restriction. Check to see if carbon canister has been flooded with fuel. This will keep gas tank from breathing properly… Check the ignition timing. Change the fuel filter. Change the plugs, plug wires, disributor and rotor button. Do a system analisis to see if one or more of the half dozen or so sensors is bad.

Where does the Chevy 350 crate engine come from?

Made in the U.S.A. Our famous “Hum Baby” Chevy 350 crate engine! She’s a smooth running machine that is suitable for a practical enthusiast looking for a higher quality engine than what GM offers. We took the “Hum Baby” engine and added more performance parts, bigger cam for that extra sound, and more performance without losing dependability!

How much horsepower does a Chevy 350 small block engine have?

We offer base options as well as turn key GM 350 small block engines ready for an easy installation perfect for a self install in your classic car or truck. We are a premium high-performance custom small block builder and we offer horsepower from 350 up to 500 that is specific for daily driving, not racing.

Why is my 5.7 liter GMC sputtering on acceleration?

If it’s flopping around, it’s bad, time for replacement. Two potential issues would be improperly heat treated distributor gears (there was a batch of them though they should have all been used up before ’99, you never know), and just general wear in the upper part of the distributor (common once they get up in miles.)

What kind of engine does a 1995 Chevy Silverado have?

My 1995 Chevy k1500 Silverado 350 V8 stumbles and hesitates when i take off from a stop, it idles fine and runs fine My 1995 Chevy k1500 Silverado 350 V8 stumbles and hesitates when i take off from a stop, it idles fine and runs fine – Answered by a verified Chevy Mechanic

When does a 1995 Chevy K 1500 350 TBI hesitate?

An expert whose answer got voted for 100 times. Re: I have a 1995 chevy k 1500 350 tbi it hesitates when…

How many satisfied customers have a 1995 Chevy Silverado?

1,420 satisfied customers Starts fine, then warms up, stumbles at idle(700) rpm and Starts fine, then warms up , stumbles at idle(700) rpm and dies … read more Marc Mechanic Associate Degree 2,301 satisfied customers 1995 chevy k1500 5.7 stalls intermittently and bogs when i

When does Chevy Silverado 1500 engine hesitate during acceleration?

Chevrolet Silverado 1500 Engine hesitates during acceleration Inspection at your home or office. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

What causes a car to hesitate when accelerating?

A vehicle that hesitates while accelerating or while driving up a hill may have a weak fuel pump. Throttle position sensor: A throttle position sensor tells the vehicle’s computer how far the throttle is open and how hard the accelerator is being pressed.

Why does my Buick Enclave hesitate when accelerating?

It can be frustrating for any driver to expect certain acceleration from their vehicle only to find that the vehicle seems to be hesitant while speeding up. This hesitation could be potentially dangerous in situations like entering and exiting the highway from an off-ramp, where acceleration may be necessary to merge with traffic.

What’s the idle RPM on my Chevy Suburban?

My 1997 Chevy Suburban (5.7) is acting up on me. When I start it up the RPM and idle seem fine. As I let it sit for a couple of seconds the RPM’s slowly begin to drop until they finally bottom out at about 1K. As soon as I put it into Reverse/Drive etc. the RPM’s drop below that mark and it struggles to stay running.

What does low rpm mean on a GMC Truck?

Lower counts indicate that less air is commanded by the control module. This DTC is designed to detect low engine RPM that is not responding to increased IAC counts. AllOffTopic.com FTW!

What should the idle rate be on a 1997 GMC Truck?

Underdog, I don’t know the 1997 5.7, but 1000rpm sounds like a high idle, not where it should “bottom out”. A V8 should idle at 500rpm. GoNDown, did you recently disconnect your battery? After I left mine dead in the yard for a while and didn’t charge it, when I started it up it ran like you describe for a few days and then it was fine.

What kind of engine does Silverado 4.3 have?

Also having this problem. 2007 Silverado 4.3 V6 -39,000 miles…no engine or tranny mods. No exhaust. I do have a K&N air filter that I just cleaned.

What causes engine to bog down when giving throttle?

Driving along at about 40-50mph and I go to accelerate and a get a shuttering/bogging down of the engine and have no real throttle. If I gently press down on the petal I can accelerate, but the moment I try and step on it I get the symptoms described above.

Is the Chevy 5.3 liter engine without problems?

In fact, it is not a rare occurrence for a 5.3 Chevy to go above and beyond 200,000 miles. However, no engine or car is entirely without flaws. If you are in the market for a Chevy 5.3 vehicle, there are some things to look out for.

What causes a Dodge Ram 1500 to bog down?

– CarGurus Starts,Idols perfect Bogs down, no power upon acceleration 1997 1500,5.2 Gas,Auto.Could cause be bad Cat? at which point I replaced plugs, cap, rotor @ 71000. It cleared code, but still wasn’t

Why does my Chevy truck stall at idle?

Filter is not that old, and if plugged or if pressure regulator is malfunctioning, why do I never see fuel pressure at throttle body so much as waver lower than 12psi? Also, many times the lean condition will start just off idle so bad so that truck wil fall flat on its face and stall.

When did my Chevy Suburban start stalling out?

We purchased it from a Chevy dealership back in 2002. It was a GM buy-back, for the same reasons it’s now having. NO DTC’s, NO CEL. Having a problem with stalling. It usually happens after backing out of parking areas when vehical returns to idle while shifting from reverse to drive.

What causes a GMC Sierra 1500 to stall?

But the stable idle won’t last long, it’ll idle low and rough. Mpg has decreased drastically and give off a rich smell when running. 308 people found this helpful. Bad hesitation off of the start, pumping the gas pedal helps to get her going. Pushing the pedal hard well bog it out and almost stall. 290 people found this helpful.

Why is my Chevy Suburban bogging down on hard acceleration?