Q: Engine light flashing intermittently

asked by on

My check engine light is flashing intermittently. The car shakes when idoling and the revs look really high. There seems to be a loss in power. It only happens when the car gets too hot or when it is going up hill. I'm not sure what this means, can you give me some possible diagnoses?

My car has 75000 miles.
My car has an automatic transmission.

This may be related to a faulty or dirty 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. I would suggest having a professional from YourMechanic come to your home to diagnose and replace this sensor.

Was this answer helpful?
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. Engine light flashing intermittently

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 overheating and the coolant is leaking from the radiator - 2000 Honda Civic

The cooling system is designed to be a closed, pressurized system. It acts kind of like a pressure cooker. When there is a leak in the system, it causes the water to boil and will heat up quicker, as the...

Q: Stiff steering wheel, Battery Light flashing, and noise under hood.

Hi there. The stiff steering wheel and flashing Battery Light may be caused by a serpentine drive belt that has broken or come off. It could be that the serpentine belt tensioner pulley was making noise and seized or that...

Q: When rev engine, short lag and slows to idle

You did not mention the engine you have in your truck, but I would suspect the engine turbo vane control is sticking when you rev the engine and will cause the engine to stay revved until the vanes go back...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...