Skip the auto shop - Our mechanics make house calls

Q: Ecu problem wanting to make sure

asked by on

The car starts fine, the mechanic symbol shows up and the engine light. The shifting jerks when putting in gear and the motor doesnt seem to want to shift up from 2nd, so only getting about 40 mph. Thought it was a transmission problem. Took it to the mechanic, no issues with the transmission, he did say they where 19 codes that showed up and then he cleared them and 18 showed back up, i need to know what i am looking at and what i can replace. Any ifo will help, thanks you

My car has 101068 miles.
My car has an automatic transmission.

A: You need to have some of the codes like the...

You need to have some of the codes like the first three diagnosed using the proper pinpoint tests until a problem is found. You may have an electrical harness short or a cut that is causing all the codes.

Only a thorough test can isolate the failure and you should not replace the ECM unless the pinpoint test says it is the cause.

If you'd like to get this fixed, consider YourMechanic, as one of our mobile technicians can come to your home to diagnose the trouble codes firsthand and help make the necessary 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・Save up to 30%

Get a quote

What others are asking

Q: Vibration in drivetrain

Hi there. This vibration could be caused by a number of things. However, the first place I would look is the driveshaft and u-joints. The driveshaft is used to transfer engine torque from the transmission output shaft to the rear...

Q: Engine stalls and then starts again fine

This is a well documented issue with the Chevrolet Equinoxes. The most common issue reported is the vehicle will suddenly shut off in the middle of driving it, regardless of speed, etc. It will normally start up after waiting a...

Q: Occasionally will not start

I am assuming when you say it won't start in this case, the motor will not turn. It's an important distinction to make. Is it a "Crank no start", or is it a "No crank". With the crank no start,...

Related articles

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.