Engine turns over, sprayed starting fluid in in intake at filter still wont run?

Tiny
BUGGIEZRULE2
  • MEMBER
  • 2002 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 180,000 MILES
The engine turns over, sprayed starting fluid in in intake at filter still wont crank- has orange spark at spark plug wire when grounded and turning engine over- under stand should be blue spark-new spark plug wires - only code is something about voltage at l terminal on alternator-battery fully charged any ideas? Thanks
Tuesday, December 30th, 2008 AT 6:05 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

In order for the coils to produce enough output it needs to get correct amount of voltage in.
Check the connector to the coil and see if you have getting 12V+.
There could be too much resistance in the circuit, as a result the coil is not producing the strong spark.
The electronic ignition system uses an individual ignition coil for each cylinder. The powertrain control module (PCM) controls the ignition system through eight individual igniting control circuits
The PCM triggers an ignition coil by grounding the appropriate IC circuit using information from the crank sensor and camp sensor.

I have attached the complete step by step diagnostics of the electronic ignition system of your vehicle.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please let me know of any questions.

Thank you.
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Wednesday, August 11th, 2021 AT 9:55 PM

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