Skip the auto shop - Our mechanics make house calls

Q: Car stalls when stopped, jerks in motion

asked by on

Hi. My car has started stalling when I stop the car at the red light for example. Another issue occurs while the car is in motion. Then it starts jerking. When I went to the shop, the mechanic told me that I should replace the ECM computer. A cpouple of days after it had been replced, the car started having the same problems with stalling and jerking yet again. What could be causing this? Thanks.

Have the computer checked for codes to see if the EGR system is malfunctioning. The ECM is not a common failure, and the failure may be caused by the EGR system or the engine having a misfire in one or more of the cylinders. The wire harness on these vehicles has very small pins and sockets and are very susceptible to connection issues at any of the engine sensors. This can cause multiple codes to be stored in the computer. The list of possible connections that could have a problem is very long and includes the ECM and all the engine sensors. The first place to look is at the connections to the crankshaft and camshaft sensors. If you would like to have this diagnosed, a certified technician from YourMechanic can come to your home or office to inspect your stalling issue and recommend the appropriate repair.

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: Vehicle died, but it's not the battery

Hi, a few things can cause a car to die while in traffic. Battery connection is one thing. Check the terminal and make sure it has a clean connection. Inspect the drive belt to make sure its intact and not...

Q: Headlights stop functioning after starting SUV

Hi there, thanks for writing in about your 2008 Saab 9-7x. The circuit protection devices are trying to warn of an issue in the system. The rest of the electronics along the lighting circuit must be inspected to prevent further...

Q: Computer taken out by close lightning strike.

[The National Lightning Safety Institute]((https://weather.com/storms/tornado/news/what-happens-when-lightning-hits-car-20140625) reports that some vehicles struck by lightning experience external damage, including pitting and arcing, as well as internal damage to electronic systems and components. It is pretty likely that an electric pulse from the lightning...

Related articles

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...
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...