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Cranks will not start

Tiny
BESTES
  • MEMBER
  • 2006 CADILLAC CTS
  • 3.6L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Car cranks but will not start, but if I unplug mass air flow I can get it to run and idle. I installed two new MAF sensors on it.
Saturday, September 8th, 2018 AT 10:19 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,877 POSTS
Hello,

It sounds like the PCM is going out, but to be sure lets run the codes. Here is a guide to help get us started:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.

Cheers, Ken
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Sunday, September 9th, 2018 AT 1:17 PM
Tiny
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  • MEMBER
  • 2 POSTS
What you looking for I have done this already shows p0102, p2229, and p0113. And sometimes it show crank sensor code but has been replaced.
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Monday, September 10th, 2018 AT 7:45 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,877 POSTS
These are three different sensor issues and the fact the crankshaft codes comes and goes tells me PCM. Can you tell me if the car has had any wiring repairs or modifications done?
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Monday, September 10th, 2018 AT 11:06 AM

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