Skip the auto shop - Our mechanics make house calls

Q: My car stalls, and the oil light and D4 light are blinking

asked by on

Here's the sequence that my car has gone through before stalling. In the morning it starts up fine because I assume it's not hot outside nor has the engine heated up but once the left hand gauge gets to the middle, then it starts climbing which I know it shouldn't do and then it begins to stall whenever I come to a complete stop or change into reverse or D4. Now yesterday the oil light was blinking (the day prior as well so I put oil in it) and the D4 was blinking so I'm not sure exactly what that means. But this morning, because I feared it had just overheated, I went to put coolant in it and it ran good until it warmed up then the problem continued to happen with the stalling. The D4 light was not blinking this morning as I did not even drive a mile to the store and back. Can someone please help?

My car has 230000 miles.
My car has an automatic transmission.

Hi there, thanks for writing in. I’d be happy to help. The D4 light relates to the transmission indicating that the transmission control module has detected a problem. The overheating is a separate and much more critical issue as this can cause major engine damage or failure if not quickly repaired. Engine overheating can be caused by a variety of things such as a failing thermostat, a clogged radiator or faulty coolant temperature sensors which control the cooling fans. This may also be related to having low oil as well which can also cause additional problems and create an overheating issue.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make any repairs as needed.

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: How do I adjust the seat backs?

Adjusting the seat backs is important for comfort, but also for safety. Sitting too close to the steering wheel could result in injury if the air bag deploys. The National Highway Traffic Safety Administration (NHTSA) recommends drivers have at least...

Q: Car won't start in colder weather

Hi There, As you may already know, car engines and batteries typically do not do as well in colder weather for a few reasons. When the engine sits for an extended period of time in cold weather, the oil inside...

Q: Ignition switch is going out.

This sounds like your ignition lock cylinder and ignition switch both need to be replaced. A mechanic would need to replace the lock cylinder first and then check the switch operation to see if it will need replacement also. ...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.