Engine cranks, but there is no spark?

1992 BUICK REGAL
26,000 MILES • 3.1L • V6 • 2WD • AUTOMATIC
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DOMINICK VARGO
  • MEMBER
  • 1 POST
Car is not getting spark ran fine one day came back out the next no spark but cranks.
May 27, 2023 at 1:32 AM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

Chances are it is related to the crankshaft position sensor. When they fail, the vehicle will lose spark to the plugs.

Take a look at this link:

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

Also, have you checked to see if there are diagnostic trouble codes stored? This vehicle has an OBD1 system and doesn't require a scanner. All you need is a short jumper wire or even a paper clip. Try this and let me know if any codes are stored.

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

I attached a pic below showing the crankshaft position sensor location. If you have no spark, this is my first suspect.

Let me know what you find,

Joe

See pic below.
Image (Click to enlarge)
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May 28, 2023 at 12:30 AM
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