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Crank no start

Tiny
TIME4HUNTIN
  • MEMBER
  • 2006 GMC SIERRA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Replaced spark plugs cap and rotor. Ran fine, drove on the highway about ten miles just shut off no start after that.
Tuesday, January 15th, 2019 AT 7:25 PM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Can you turn the ignition key on without cranking the engine over to see if you can hear the fuel pump in the tank run for five seconds? Here is a guide to help us get started:

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please run down this guide and report back.

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Wednesday, January 16th, 2019 AT 5:21 PM
Tiny
TIME4HUNTIN
  • MEMBER
  • 3 POSTS
Yes, I hear pump running and there is pressure in gas line will check with a gauge tomorrow but it did squirt fuel out. Getting spark of and on what concerns me is while cranking one minute it sounds normal next time it cranks kind of slow almost like its out of time. Occasionally it spits back up through the throttle body (air cleaner box removed).
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Wednesday, January 16th, 2019 AT 5:53 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Can you please shoot a quick video with your phone so we can hear the noise? that would be great. You can upload it here with your response. Does it sounds like you lost compression? Let take a reading of a few cylinders to see where we are at this guide will help

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run down this guide and report back.
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Thursday, January 17th, 2019 AT 10:38 AM
Tiny
TIME4HUNTIN
  • MEMBER
  • 3 POSTS
No, it sounds normal cranking then it will sound like it is cranking slower like timing has jumped making it spit up through throttle body.
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Thursday, January 17th, 2019 AT 12:29 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Yep, it sounds like the timing has slipped a compression test will confirm the issue. You can rent a gauge for free from an auto parts store in most cases.
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Friday, January 18th, 2019 AT 11:18 AM

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