Q: I think dirty MAF

asked by on

My lancer has been acting up lately, when I am at a full stop or going up a steep hill the engine stalls and seems like it doesn't have power, the gas gets cut off and only when I let go of the gas pedal and proceed slowly will it change gear fine, the car would run fine at high speed. It also starts fine. After I turn off the car the fan will stay on for a while also.

My car has 91540 miles.
My car has an automatic transmission.

This may be a sign of a 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 into the motor. When this fails, this can cause an imbalanced air/fuel load to be supplied to the motor which often times results in the engine starving for air or fuel. This is what causes the hesitation or loss of power you describe. This can also cause the engine to struggle to idle for the same reason. If you would like to have this taken care of, a qualified professional from YourMechanic can come to your car’s location to diagnose the stalling problem and assisting with proper repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. I think dirty MAF

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: truck keeps stalling when I start running it

Hi there. Check the ground strap from the engine to the body and see if its broken or detached. If the strap is good, then check the contacts to the starter relay to see if the contacts are loose. Loose...

Q: Crank but no start..

Hi. There is a good possibility that the timing belt has broken and is causing the engine to be out of time. The engine you have is an interference engine this means the clearance between valves and piston are very...

Q: car vibrates bad off and on at an idle and driving

Hello. You may have a few issues going on. It does sound like you have a bad axle. That will cause the noise when turning. The vibration is more than likely caused by bad engine mounts. Bad mounts will allow...

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 Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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.