Skip the auto shop - Our mechanics make house calls

Q: no acceleration when pushing the gas pedal down (even to the floor)

asked by on

Car has issues when accelerating to the on ramp, driving in town is fine. accelerating up to high speeds is the problem here. hope this helps

My car has 125000 miles.
My car has an automatic transmission.

A: This may be related to a faulty mass air fl...

This may be related to a faulty mass air flow sensor or potentially a bad throttle position sensor. The mass air flow sensor monitors air as it enters the intake system allowing for the proper amount of fuel to be mixed with it as it is injected into the motor. When this is not working properly, this causes an imbalanced load of fuel and air to be supplied to the motor causing it to hesitate as you describe. A faulty throttle position sensor may also cause this type of hesitation to accelerate. The throttle position sensor monitors your foot position on the gas pedal and relays this info to the computer directing the fuel injection to provide more or less fuel to the engine. If you need assistance, a certified YourMechanic technician can be dispatched to your location to inspect your vehicle's acceleration issues and suggest any repairs necessary.

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: What brand of filter

Hi there: One of the better oil filter brands made today is offered by Wix Filters; especially for "larger" four-cylinder engines like your G6 has. This motor is recommended to use a 5w20 conventional, synthetic blend or full synthetic oil....

Q: 2010 Ford Fusion SE with I4 Engine - Throttle Position (TP) and Accelerator Pedal Position (APP) sensors

Since the code reads Throttle Body, the sensor on the throttle body under the hood may be the best place to start. The throttle position sensor measures the angle of the throttle plate and tries to match the effort shown...

Q: Problem starting

A broken ground cable is a definite possible cause of the intermittent starting issue. My suggestion is that you put the new ground cable on, then see if the problem still exists. There is a possibility that it is an...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.