Crank no start issue

2010 CADILLAC ESCALADE EXT
115,000 MILES • 6.0L • V8 • 4WD
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PLITTLE63
  • MEMBER
  • 4 POSTS
Cranks but no start and. No tachometer reading on gauge.
Jul 10, 2019 at 3:34 AM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good morning,

Sounds like the crank sensor is not sending a signal to the PCM> That will disable the fuel pump, spark and will not permit the engine to start.

The starter has to be lowered to gain access to the sensor.

Roy

Note: Perform the Crankshaft Position System Variation Learn (See: Crankshaft Position Sensor > Programming and Relearning) whenever the crankshaft position sensor is removed or replaced.


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1. Remove the starter. Refer to Starter Replacement (See: Starter Motor > Removal and Replacement > Starter Replacement).
2. Working through the wheel well opening, disconnect the engine wiring harness electrical connector (1) from the crankshaft position (CKP) sensor.


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3. Clean the area around the CKP sensor before removal in order to avoid debris from entering the engine.
4. Remove the CKP sensor bolt.
5. Remove the CKP sensor.
Jul 10, 2019 at 4:19 AM
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PLITTLE63
  • MEMBER
  • 4 POSTS
Thanks Roy. I thought it was going to be the crank sensor because of no tachometer reading.
Jul 10, 2019 at 4:49 AM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
You are welcome.

Always glad to help.

Roy
Jul 10, 2019 at 4:57 AM