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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
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
OHIO HUNTER
  • MEMBER
  • 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
OHIO HUNTER
  • MEMBER
  • 23 POSTS
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
OHIO HUNTER
  • MEMBER
  • 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
OHIO HUNTER
  • MEMBER
  • 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
OHIO HUNTER
  • MEMBER
  • 23 POSTS
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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