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2000 Chevy Silverado truck starts then stops

Tiny
ROCKLOS1
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
Truck starts but shuts off, ive replace fuel pump a few month ago right now its doing 55-60psi key on, changed the crank position sensor, fuel filter, regulator, still nothing, no codes on scanning computer. Need help to get going?
Monday, July 7th, 2008 AT 2:21 PM

12 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try feeding it with carb cleaner continuously does it continue to run if so test the oil pressure sending unit-
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Monday, July 7th, 2008 AT 3:03 PM
Tiny
ROCKLOS1
  • MEMBER
  • 6 POSTS
It does run with staring fluid or carb cleaner, I also was told to check the injector for a pulse and nothing there.
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Monday, July 7th, 2008 AT 4:49 PM
Tiny
RASMATAZ
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Could be that the computer is not receiving the ignition reference signal therefore its not energizing the injector/s or a problem with drivers in the computer or power to the injector/s-
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-1
Monday, July 7th, 2008 AT 6:21 PM
Tiny
ROCKLOS1
  • MEMBER
  • 6 POSTS
Thanks for the help your giving me, I just picked up a pcm from a bone yard and still the same, starts and stops?
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Monday, July 7th, 2008 AT 6:56 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try this use direct power from the battery to the fuel pump connector gray wire-
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Monday, July 7th, 2008 AT 7:06 PM
Tiny
ROCKLOS1
  • MEMBER
  • 6 POSTS
Is there any other place to catch that grey wire or do I have to tie in at the fuel tank.
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Monday, July 7th, 2008 AT 7:58 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You can power it thru the fuel pump terminal of the diagnostic connector if it has the terminal
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Monday, July 7th, 2008 AT 8:52 PM
Tiny
ROCKLOS1
  • MEMBER
  • 6 POSTS
Ok I powered it though the main fuse panel theres a prim connector and added the 12 volt heard it humming and cranked the key a few time and still nothing, I do have a pressure gauge on the rails and its doing 58 psi.
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Monday, July 7th, 2008 AT 9:05 PM
Tiny
RASMATAZ
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Crank engine over while listening to the injector/s are they clicking meaning its pulsing
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Monday, July 7th, 2008 AT 10:18 PM
Tiny
ROCKLOS1
  • MEMBER
  • 6 POSTS
I put I test light to it and no flashing.
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Tuesday, July 8th, 2008 AT 4:38 AM
Tiny
RASMATAZ
  • MECHANIC
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Did you check injector A and B fuses 15amps, also check the camshaft position sensor in the distributor this is the one that synchronizes the injectors-
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Tuesday, July 8th, 2008 AT 3:48 PM
Tiny
ROCKLOS1
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  • 6 POSTS
Fuses good, truck is 2000 and it doesnt have a distributor.
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Tuesday, July 8th, 2008 AT 5:02 PM

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