2000 GMC C1500 GMC not starting

Tiny
OHIO HUNTER
  • MEMBER
  • 2000 GMC C1500
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 183,000 MILES
I have a 2000 gmc sierra I was driving today and it just shut off. And now it will not start any idea what would cause this problem? It will turn over just not start
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Sunday, December 14th, 2014 AT 4:57 PM

10 Replies

Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Lets check fuel pressure. Go to parts store and rent a fuel pressure gauge and see if you are getting pressure.
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Monday, December 15th, 2014 AT 5:40 AM
Tiny
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  • 23 POSTS
Ok done that reads 50psi.I also tried spraying a little starter fluid in the throttle body and still wont start.
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Monday, December 15th, 2014 AT 1:19 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Ok, check to see if you are getting spark at the spark plugs.
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Monday, December 15th, 2014 AT 1:29 PM
Tiny
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Hi john yes im getting spark to all the plugs. Do you think it may be the crank postion sensor or maybe the ignition module?
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Monday, December 15th, 2014 AT 1:43 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
I was leaning towards a crank sensor. You usually lose injector pulse and spark when a crank sensor goes out. If your getting spark then it should have ran when you sprayed the intake with starter fluid. Im wondering if your timing is now off.
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Monday, December 15th, 2014 AT 1:46 PM
Tiny
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  • 23 POSTS
Yea im getting spark. Ill check the timing on it. Its got me puzzled lol
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Monday, December 15th, 2014 AT 2:24 PM
Tiny
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  • 23 POSTS
John what would cause my cluster panel to stay on when I remove the key? And it seems like the battery is loosing charge.
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Tuesday, December 16th, 2014 AT 12:43 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
I would be surprised really if your timing chain had broken. Your dash stays on when key removed? Does the dash go out after you open a door?
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Tuesday, December 16th, 2014 AT 12:58 PM
Tiny
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No it does not. It always went off when I removed the key. Now I have to unhook the battery cable to turn the cluster panel off
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Tuesday, December 16th, 2014 AT 7:22 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Hmm. You may want to take it to a pro so they chase down the issue.
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Monday, December 22nd, 2014 AT 7:47 AM

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