Skip the auto shop - Our mechanics make house calls

Q: Bad response from gas pedal

asked by on

When I press my foot down on the accelerator in my 2008 Chevrolet Equinox it takes a second for anything to happen. The vehicle only has 76,000 miles on it and the problem started around 68,000 miles. It was slight at first. This problem makes the car a lot less responsive when I am moving through traffic and I am worried that it’s a sign of a bigger problem. What could cause this, and could this lead to an expensive repair down the road?

A: This condition is commonly caused by defect...

This condition is commonly caused by defective spark plugs, wires or ignition coils and occasionally all 3! Service Bulletin number #SB-10250 addresses this issue, and in most cases if you’re under warranty the dealership will replace these items free of charge. However, you may have a harder time if the vehicle has been out of the warranty for a while. The symptoms will include hesitation upon acceleration, rough idle, hard start or general chugging. You're also likely going to notice a decrease in fuel economy. If your Check Engine light comes on begins to blink, stop driving the vehicle immediately and address the issue. GM has said that defective spark plug wires with low insulation may also cause this issue as they are run very near to the exhaust manifold which gets quite a bit of heat, resulting in compromised wires at the very least. Taking your VIN number into a dealership may be helpful to identify recalls and Technical Service Bulletins (TSB) that address this and other issues. If you are unable to have the issue resolved, a certified repair service such as YourMechanic may be able to diagnose the problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Won't start

Hello. You could have a fuel pump issue but the problem could also be due to an intermittent electrical connection in the ignition system or even in the fuel pump wiring. If it is now completely dead, it should be...

Q: How do I attach a child restraint system?

There are lots of different child restraint systems available. Because each is unique, you should carefully read the owner’s manual of the child restraint system to determine the best way to attach it to your vehicle.

Q: Car stalls, rpms go up, & no power

Hello. This can be caused by a number of things. I usually start by scanning the computer for codes. This will give me an indication of anything the computer is seeing. If it is not seeing anything, then it may...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...