Skip the auto shop - Our mechanics make house calls

Q: My car bucks when I step on the gas pedal, even in park. It acts like it's not getting fuel, at idle it runs smoothly.

asked by on

was stumbling on and off at accelration for awhile now it bucks when i try to speed up will cruise at about 55 fine if i try to give it gas it bogs down and shacks , at idle it runs smooth , if its in park at i push pedal to the floor it has no power either , tonight the check engine light flashed , it also seems to want to run hot when i try to get it to go faster , it is a 2004 gran prix 6 cylinder .

My car has 250000 miles.
My car has an automatic transmission.

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: Why does car start when MAF sensor is cleaned with spray even after being disconnected

The MAF sensor may be not reading the correct altitude you are at and may see 10,000 ft when you are less than 500 feet. When you disconnect it the computer uses a set look up table stored in memory...

Q: How much will it cost to tighten the tension pulley and repair power steering leak?

Hello there, you have several different issues going on with your 1999 Pontiac Bonneville. If the tensioner pulley is loose, it most likely needs replaced as it has become damaged on the inside and tightening it will not fix this....

Q: Won't stay started.

Hi, thanks for writing in. This sounds like you may have a problem relating to the electrical draw of the instrument cluster or potentially a short somewhere causing this excess draw of power. When one component in the electrical system...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.