Skip the auto shop - Our mechanics make house calls

Q: Engine has trouble starting

asked by on

My car randomly stalls out, so I keep it idling at red lights, etc. I took it to my mechanic, but naturally it didn't stall for him. Now the car jumps when I shift down to first. What is the problem and can it be fixed?

The stalling would have to be felt, since these vehicles have issues with the torque convertor lock up still engaging when stoping, causing the engine to stall. Then the engine starts and runs fine. If this is not the case for you, then only a computer check will leave a code and by performing a test you may find that the idle air control valve is sticking closed intermittently and will not control the idle. If you are getting no codes through a computer check, then have the idle air control valve cleaned and see if this makes a difference. If it continues then replace the valve. I’d recommend having a certified mechanic check out the vehicle, they will be able to accurately diagnose and fix your stalling problem.

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: Ac pulley faulty

Hello. If you choose to not use the air conditioning, there is no issue with bypassing the compressor altogether. There are several options for you to choose from when it comes to bypass pulleys. Most of them are available online....

Q: Get "check your oil level" on dash info panel. Had it checked out, was told it was oil sensor and a "dealer item". Was also told t

Hi there. The oil sensor is not incredibly difficult to replace on a 2001 Cadillac DeVille, but can be difficult to get to without a lift. This video is for a different vehicle, but the same engine as your car,...

Q: Does a 1994 Cadillac Deville have a crankshaft sensor or do I need to replace the whole distributor?

Hi there. The ignition system for the 4.9L in your vehicle, should be HEI (high energy ignition) and does not have a CKP (crankshaft position sensor). The pick-up coil is inside the distributor and most likely is not the cause...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.