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Does not start, no spark

Tiny
AUSTIN DIEHL
  • MEMBER
  • 1994 PONTIAC GRAND AM
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 57,000 MILES
So, I bought the car listed above just a few weeks ago and was told that the fuel pump was no good. I replaced the fuel pump, and it ran fine for a few days then it started to randomly shut off. I went and got seafom and ran it through it and it ran fine, and I let it run while I started replacing the front struts when it just shut off and would not start again. I replaced the coil cover along with the packs and there is still no spark, I look at fuses and they seem fine as well. I am stumped and I don't want to give up on it any ideas on what it possibly could be?
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Monday, May 30th, 2022 AT 7:01 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,292 POSTS
Hi,

What you described sounds like a faulty crankshaft position sensor. Take a look through this link and let me know if anything mirrors what you experience:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Next, if the car has a tachometer, crank the engine, and watch the tachometer to see if it moves at all. If it doesn't, chances are it is the sensor.

One other thought. Here is a link that explains how to retrieve codes for this vehicle. It has an OBD1 system and doesn't require a scan tool. All you will need is a short jumper wire or even a paper clip.

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

Let me know what you find or if you have questions.

Take care,

Joe
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Monday, May 30th, 2022 AT 9:22 PM

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