Skip the auto shop - Our mechanics make house calls

Q: Acceleration problem

asked by on

hello, my car has an acceleration problem especially on driving up a hill, after slowing down doesn't have power and when overtaking other vehicles. toyota fielder station wagon 2004.

kindly advice.

My car has 165000 miles.
My car has an automatic transmission.

A: Hey there. This may be related to a fuel de...

Hey there. This may be related to a fuel delivery issue such as a faulty mass air flow sensor or throttle position sensor. As you may know, the mass air flow sensor regulates the air intake as it is mixed with fuel prior to being injected into the engine. When this is not working properly, it may cause the engine to starve for fuel or air depending on the mixture error. When this happens, this may cause the symptoms you describe. A certified professional, such as one from YourMechanic, can diagnose the acceleration problem and proceed with appropriate repairs.

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: hi i have 2003 toyota corolla s. missing underhood emission label. i need buy CAT but need know it its ULEV, LEV, or TLEV?

In this situation, I would recommend calling your local Toyota dealership to see what information they can give you. It is possible that you can give them your VIN number and they will be able to tell you which type...

Q: Car bucks going up hill

When your vehicle climbs a hill, the additional stress is sometimes too much for it to handle. Judging by the "bucking", it seems the engine is struggling to combust the air/fuel mix in the cylinder. This can be due to...

Q: Door ajar light is on and the cab lights won't turn off while driving

Hi there. From the description you have provided, this is probably the result of a failed door ajar light switch. The door ajar switch is part of the door latch assembly. It may have to be replaced as an assembly....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...