Why does my Chevy Impala bog down when I accelerate?

But if I try and mash the pedal the car bogs down. I can’t accelerate through it, but if I let off and drive normal it’s fine. It is definitely worse under load. If I’m in park and mash the pedal the engine will hesitate a little but will rev up. If I’m am driving and try it, the car will completely lose power and bog down.

When to throw an opti code on Chevy Impala?

The 02’s can get slow to respond, and the car will miss until the slow 02 catches up to the real conditions. The opti will not throw an opti code (36 or 16) until it gets so bad that the car sporadicaly cuts out, and won’t restart.

Are there any Denso sensors on Chevy Impala?

I picked up a couple of the Denso 234-4012 02 sensors on the first, and so far they run identical to the AC Delco 02’s that had in it that I now have put up as spares (good, quick response time, no hanging throttle effect like you get with bosch 02’s).

Is the Chevy Impala SS a supercharged car?

But for those who want more, Chevrolet has added a supercharged Impala SS model for 2004. The Chevy Impala is calculated to push the nostalgia button. By any other name, it would be an impressive, significant car. But Chevrolet chose to honor an icon of the 1960s, not only with the Impala name, but with key visual cues.

How does the Chevy Impala SS feel on the road?

Out on the road in cruise mode, the Impala SS is relaxed, its strengthened Hydra-Matic 4T65-E 4-speed providing unobtrusive, smooth shifts with a quick kick-down reaction. Even with the increased spring rates, the structure feels very solid and squeak-free, and tall gearing makes for low revs and noise levels at freeway speeds.

What kind of engine does the Chevy Impala have?

The Chevrolet Impala is a roomy and practical car, a mid-size sedan that handles well, yet rides more like a big luxury car. Acceleration with the optional 3.8-liter V6 is more than adequate. But for those who want more, Chevrolet has added a supercharged Impala SS model for 2004. The Chevy Impala is calculated to push the nostalgia button.

What’s the price of a 2004 Chevy Impala?

Three models are available: Impala ($21,485), Impala LS ($24,585), and Impala SS ($27,385). The base Impala runs with a 3.4-liter V6 rated at 180 horsepower. The more up-market LS comes with GM’s proven and highly competent 3.8-liter V6, producing 200 horsepower.

Why does my Chevy Impala have a shudder?

Nothing changed, teh shudder was still there. About a year ago EGR code 32 started showing up intermittently. For some reason, I was sure it was rather electrical problem since the valve was clean as whistle, plunger moved smoothly and the diaphragm was intact.

What does reduced engine power mean on a Chevy Impala?

The reduced power displays on the console, the car slows to a crawl and the Check Engine light comes on. I travel 40+ miles each way to work in Atlanta traffic with speeds around 65-80 (big trucks).

What happens if you run low on oil in an Impala?

This will make your vehicle overheat and not drive well. You will lose power in your engine and your Impala will not have its usual responsiveness when you press the accelerator. If your engine runs low on oil, it will not be lubricated properly and can permanently damage a number of important engine components.

Why does my Impala not go when I press the pedal?

If your Impala seems sluggish or does not want to go when you press the pedal, your best bet for diagnosing the precise problem is to take it to a mechanic. If the oxygen sensor or mass airflow sensor on your vehicle goes out or malfunctions, it will affect the fuel-to-air mixture in your engine.

Why does my Chevy Impala have less power?

This is because the sensor picks up on the signals that there is less airflow in the engine, which causes the engine to use less gasoline, hence leading to less engine power. 2. Clogged Air Filters An air filter works alongside the airflow sensor for the most part.

What is the service engine code on a Chevy Impala?

And we wonder why people buy foreign! 😡 When the service engine light is on the code will be P2138 and because the condition that causes it is intermittent the dealer will not be able to read the code if the light has gone out as was the case with mne last week.

Why does my Chevy Impala have a water leak?

If you google the code you will see that GM has issues with a water leak somewhere in the A pillar on the driver’s side which allows the water to run down inside the left foot kick and I understand that there is a wire connector inside that takes on water, corrodes and throws the codes.

How does the air sensor work in a Chevy Impala?

The air aids the combustion reactions that take place in the engine; therefore, it is a necessary aspect of maintaining engine power. The sensor functions by letting airflow over a heated wire. The volume of air varies off and on, and this affects the temperature of said wire as well.

Why does my Chevy Caprice engine bog down?

The 94 caprice that I service had similar problems like this, and after inspecting, the intake track had a crack in the bellows of the TB elbow. The crack wouldnt show until the engine was revved, and the movement of the engine would pull it open and bog the engine down.

What’s the average price of a Chevy Impala?

Chevrolet Impala Engine hesitates during acceleration Inspection costs $85 on average. 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.

Why does my Buick Enclave hesitate when accelerating?

Fuel injectors may become dirty over time and not be able to provide as much fuel to the cylinder as is needed. Dirty fuel injectors may cause the engine to run lean which will in turn, cause hesitation when accelerating.

Why does my Toyota Corolla hesitate during acceleration?

When a vehicle is hesitating during acceleration, it should be inspected by a mechanic. A vehicle with a combustion (gas or diesel) engine requires an exact mixture of fuel and air to run efficiently. If this mixture is thrown off in any way, it may result in an engine running too lean (not enough air), or too rich (not enough fuel).

When does Chevy Impala engine hesitate during acceleration?

Chevrolet Impala 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.

Why does my Chevy Impala jolt while driving?

I bought my car used, but bought the LONGEST, most complete warranty they had, so…I wanna know if this’s something I should take in asap, or not. While accelerating from a stop, or accelerating from various speeds such as 35 or 55, it will jolt during acceleration as if it is slipping between gears.

How much does a Chevy Impala Jerks and Bucks?

Car jerks and bucks does not accelerate right away then when it does it shifts hard into gear. The average cost for a Chevrolet Impala General Diagnosis is between $88 -$111. Learn More Car jerks as I begin to accelerate.

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

What kind of transmission does a 2001 Impala have?

Driving my 2001 Impala, Up hills slows down even when floored. Tried to pass someone on the highway at 90-100kms no pick up. Engine revs … read more Vocational, Technical or Tra… I have a 1994 GMC half ton 4×4 Automatic 5.7 Litre. The problem im having is when i take off my 4×4 shifter that’s on the floor kicks out … read more

Can a bad throttle position sensor cause idle surging?

Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light

How does the throttle position sensor work in a car?

The throttle position sensor is what monitors the throttle position from the shaft. Basically, this sensor is connected to a computer inside the vehicle which shares information sent by the driver. This information contains the actions of the driver such as accelerating, power steering and so forth.

What’s the acceleration hesitation on my Impala 3.9?

My ’08 with 3.9 is at the dealer for the same thing, they’re having trouble finding what is wrong because there are “no codes”. Had to take the tech for a ride instead of paying for another injector flush that they already tried. Would love to get any additional info, like the alldata scoop.

Can a 4 cylinder engine misfire on a 3 cylinder car?

If your 4-cylinder engine is misfiring on one cylinder, it may sound like a three-cylinder engine. If your car’s sound is extraordinary, it’s most likely misfires on every cycle that you can hear. So, when you suspect that your engine is misfiring, where should you start looking for the problem?

How can you tell when an engine misfire is happening?

When a misfire occurs, you can feel it like a light or massive jerk coming from the engine. These misfires do often come under load from the engine, and you have the most load on the engine when you are accelerating on higher RPMs and higher gears.

What causes an engine to misfire in a new car?

7 Common Causes of an Engine Misfire 1 Bad Ignition Coil (New Cars) / Distributor (Old Cars) 2 Bad Spark Plugs 3 Intake Manifold Gasket Leaks 4 Low Fuel Pressure 5 Injector Problem 6 Low Compression 7 Wrong Air-Fuel Mixture

How does the engine control module detect a misfire?

The engine control module is using a lot of sensors to know when to ignite the spark plug and when to inject the fuel into the cylinder and to optimize the air-fuel mixture. To detect a misfire, the engine control module is often using the crankshaft sensor to detect a misfire.

What does it mean when your car won’t accelerate?

Car accelerates, but won’t exceed a relatively low speed, or shift up This is another failure mode of the TPS, which indicates that it is falsely limiting the power being requested with your accelerator pedal foot. You may find that your car will accelerate, but not beyond a speed of 20 – 30 MPH.

Is it OK to drive an engine that is misfiring?

Instead from that, misfires can damage other sensors in the engine like the O2 sensors. So, I would never recommend driving an engine that is misfiring for any long distances. Short distances to your mechanic workshop without putting a load on the engine is fine, but do not ignore the misfires and keep driving.

Why does my Chevy Impala bog down when I accelerate?