Skip the auto shop - Our mechanics make house calls

Q: Engine not reving past 2500 rpm

asked by on

I recently got gas from a gas station and on my way home my check engine light came on my car jerked and when I get to about 2500 rpm it starts jerking and will not accelerate. Then I turn my car off and it's fine. It's like when it get hot this happens then it's fine when it cools. The temperature gage stays just under half way like always. It's weird it happened as soon as I get gas. Didn't know if it was bad gas. Just weird that sometimes it happens sometimes it doesn't.

My car has 82000 miles.
My car has an automatic transmission.

A: You will need to have the computer scanned ...

You will need to have the computer scanned for codes that caused the Check Engine Light to come on. Once the code is diagnosed then you will find out if the fuel is contaminated with water. You may have an excessive amount of water that once the engine runs awhile it mixes the water and fuel causing the running problem. The fuel and water mix will clear out after running most of the fuel out then refilling with fresh fuel. It may take a couple tanks to clear all the water. When you see a fuel truck at a gas station filling them up it is best to not get fuel there for a couple days. What happens is the fuel truck stirs up the tank and water in the bottom of it.

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: My car is not starting when the MAF sensor is plugged in - 1991 Nissan Serena

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Q: Gas stops flowing above 25 mph & can't accelerate

There are several possibilities that can cause an engine to fall on its face when it hits certain RPM ranges. It could be a fuel delivery issue, air issue, or an input sensor such as a crankshaft sensor or mass...

Q: I have a 2000 mecury mountaineer. When driving spots in gears between 30 an 40. There is no back fire just misses.

The transmission has an accumulator spring that may be broken or the shift valve in the control module may have a broken spring. If an accumulator spring or a shift valve spring breaks in a transmission, the shifting will be...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...