Service engine soon turns on and off?

SHERAEDOT1234

MEMBER
1993 PONTIAC GRAND AM
2.3L
4 CYL

My car wad a mess when I got it, someone put different fan on my car it and still have hook up on tago switch now service engine soon turns on and off and when car runs for awhile it will just die have wait long time before car will start again what is problem.

2 Replies

HMAC300

MECHANIC
48,601 POSTS

Scan for codes and check fuel pressure with a gauge first auto parts rent gauge

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Friday, February 13th, 2015 AT 12:12 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

If the codes has a crankshaft sensor error I would replace the crankshaft sensor, we just had this car in the shop and that is what was wrong with it.

Here is how to pull the codes

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

REMOVAL

1. Remove sensor harness connector at sensor.
2. Remove sensor to block bolt (1).
3. Remove sensor from engine.
4. Inspect sensor O-ring for wear, cracks or leakage. Replace if necessary. Lube new O-ring with engine oil before installing.

INSTALLATION

1. Install sensor into hole in block.
2. Install sensor to block bolt (1). Torque to 10 Nm (88 lb in).
3. Install sensor harness connector.

Check out the images (below). Let us know what you find.

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