Skip the auto shop - Our mechanics make house calls

Q: Accelerating problem.

asked by on

While accelerating if I push the pedal all the way to the floor the engine will not rev or speed up in fact it will sometimes slow down. I believe there is a vacuum leak but could that be the cause for it?

My car has 170000 miles.
My car has an automatic transmission.

If you are having an acceleration problem then you should first have the computer diagnosed to see if the throttle position sensor is not stuck at idle position. The throttle is electronically controlled and will not allow acceleration if there is a failure in the system causing the system to go into fail safe mode. Have the system checked by an expert who can test and diagnose your hesitating acceleration 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・Fair and transparent pricing

Get a quote

What others are asking

Q: Found misfire on all cylinders by code reader. I checked vacuum and it was low at 14 hg. I checked compression 160 to 180 except no. 3 cylinder 180 to 270.

Hi and thanks for contacting Your Mechanic. When it comes to a misfire, first check for spark and make sure that the spark plugs are functioning correctly. Then check the fuel injectors and make sure that they are not plugged...

Q: Major Leak of power steering fluid

Hello...it sounds like you have a loose or faulty hose connection. Of course, it is also possible that a coincidental leak developed, for instance in a rusted steel tube on the return side, at the same time that you were...

Q: Power seat not going up.

Your power seat should have two different electric motors that operate it. One motor is for the lower portion of the seat that you sit on and adjusts it forward, backward, up, and down. The other motor controls the back...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.