Q: Q: Won't stay running

asked by on

Replaced alternator, battery, fuel pressure regulator, in-tank fuel pump, new spark plugs and wires, fuel relay, Mass Air Flow Sensor. Car wants to run but when I put it in gear it stalls. Starts up then stalls. Help!

After it set for awhile. I started it up and drove it to my friend's house which was about a mile but at a very slow pace.

My car has 300000 miles.
My car has an automatic transmission.

Hello and thank you for your question. It seems to be the transmission that is causing the engine to stall out when you are putting the vehicle into drive. The transmission could have a converter clutch lock up issue causing it too to engage when the vehicle is not moving. When holding on the brakes, this is similar to having a manual transmission and dropping the clutch, (the engine will then stall out). Check the transmission harness for looseness and any corrosion. If the harness is okay, then the converter clutch solenoid could be shorted.

Find the fuse in the vehicle that is for the converter clutch, it should be labeled (cc) and remove it. Start up the vehicle and put it into gear. If the engine is at normal conditions, then the converter clutch solenoid has failed and needs to be replaced. If the engine continues to stall out, then it could be a gear being engaged from forward and reverse at the same time in the transmission. To test this, unplug the harness from the transmission and try driving the vehicle around. If the vehicle drives fine, then the transmission has a clutch pack engagement problem. If you need assistance with troubleshooting your vehicle and finding the cause of the stalling issue, then seek out a professional, preferably a professional from YourMechanic to assist you.

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

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!
  1. Home
  2. Questions
  3. Q: Won't stay running

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 shuts off sporadically

There are numerous potential causes for your problem. One common issue with Volvos such as yours, is a faulty Electronic Throttle Module (ETM). It sounds like you had it cleaned, but it may need to be completely replaced. Using inputs...

Q: Q: Will not go into gear

Your vehicle doesn't have a conventional transmission oil dipstick. The transmission fluid level and condition has to be checked using a rather lengthy procedure - too lengthy to describe here - but it is documented in the Factory Service Manual....

Q: Q: Car wont start

Hello there, many common faults will cause a no start condition on your 2008 Chevrolet Cobalt. The most common fault is the battery, it must be load tested and show the capacity to be able to start the vehicle. After...

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...
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...
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...