Crank no start issue

Tiny
PLITTLE63
  • MEMBER
  • 2010 CADILLAC ESCALADE EXT
  • 6.0L
  • V8
  • 4WD
  • 115,000 MILES
Cranks but no start and. No tachometer reading on gauge.
Wednesday, July 10th, 2019 AT 3:34 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 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.
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Wednesday, July 10th, 2019 AT 4:19 AM
Tiny
PLITTLE63
  • MEMBER
  • 4 POSTS
Thanks Roy. I thought it was going to be the crank sensor because of no tachometer reading.
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Wednesday, July 10th, 2019 AT 4:49 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Wednesday, July 10th, 2019 AT 4:57 AM

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