Skip the auto shop - Our mechanics make house calls

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.

A: Hello and thank you for your question. It ...

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 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: My car shuts off while driving

Hello. Engine stalling can be caused by a wide variety of issues. Faults within the fuel, ignition, or engine management systems can all cause the vehicle to experience stalling. A few common causes of stalling are a bad idle air...

Q: It doesn't seem to shift gears? 1993 Toyota Camry

Hi - the first thing to check is the fluid level in the transmission, and the fluid condition (pink, relatively clear and no burned smell are what you want here ). This transmission has a governor in the transmission that...

Q: engine wont start

Hello, thank you for writing in. There are a few basic tests that you can do in order to help narrow down the issue. First turn the vehicle to the "On" position, and listen for the fuel pump to prime....

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...