Skip the auto shop - Our mechanics make house calls

Q: SUV hesitates when driving slowly and accelerating

asked by on

Usually when driving slowly or accelerating, my SUV hesitates. It also hesitates other times, for instance when I stop at an intersection too long. However, it easily restarts. The oil was just recently changed, plus the date inspection was performed and I also had 4 new tires installed. The power steering fluid has been refilled and they put some kind of product in the gas tank to remove water from it. The check engine light is not on and the light is not burned out. Because my car died today, again, I almost got rear ended, so I must get this fixed soon. What will fix my SUV?

A: If you have water in the gas, then you will...

If you have water in the gas, then you will have problems with the way it runs. I recommend having a fuel sample tested to see if you have water in the fuel. If you have an aftermarket air filter that has oil on it, then it may be causing the mass air sensor to incorrectly read how much air is getting in to the engine and will cause some of the problems you have been having. If so replace the air filter and service and clean the mass air sensor.

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: Car randomly hesitates

Hello. There are a few things that may explain why you are experiencing a hesitation problem with your 2002 Lexus SC430. However, it is very difficult for any mechanic to diagnose an intermittent condition. Sometimes they need to worsen before...

Q: Got my oil changed this morning and now my oil light is on and the cold/hot gauge is passed the h.

Hello. It sounds like the engine was not filled all the way. A lack of engine oil or a low engine oil level will cause the oil pressure to drop and can cause the engine to overheat as well. I...

Q: Hesitates to accelerate I've tried seafoam either I didn't know what I was doing or it just didn't work.

Hesitation to accelerate can be due to spark, air, or fuel. With you vehicle being close to 10 years old, it is a good idea to do a few maintenance procedures. If you suspect the spark plugs need to be...

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...
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...
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.