1999 Chevy Silverado Wont start

Tiny
ENDURA2
  • MEMBER
  • 1999 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
The truck wont start. Had a mechanic go over it thoroughly, even replaced the starter, checked relays etc. Still nothing.
He thinks maybe its the trucks anti-theft device thinking the truck's being stolen.
Could this be the case? And if so, is there a way to remove or override it?
Whats your opinion?
Thank-you.
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Wednesday, September 17th, 2008 AT 6:03 PM

5 Replies

Tiny
BLACKOP555
  • EXPERT
Does vehicle crank when key is turned to start, or does it just sit there like a lump on a log?
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Wednesday, September 17th, 2008 AT 7:53 PM
Tiny
ENDURA2
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It just sits there like a lump on a log
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Thursday, September 18th, 2008 AT 7:31 PM
Tiny
BLACKOP555
  • EXPERT
Ok next step would be to see if energy is being used when attempted to crank do this by turning on the headlights and trying to crank it, do the lights dim, stay bright?

If they stay bright then chances are its not drawing current, I would then check the neutral safety switch, starter relay, fuses, and ignition switch to make sure they are functioning.

What has all been checked/replaced?
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Thursday, September 18th, 2008 AT 9:43 PM
Tiny
ENDURA2
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Okay made a little bit of progress. There is power getting to the ignition and starter.
It wont crank though unless you crawl underneath and cross terminals on the cylinoid. Then it will run for approx. 30 seconds, afterwhich it shuts itself down.
Then the anti-theft light comes on thinking its being stolen.
Checked relays and fuses - all okay.
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Friday, September 19th, 2008 AT 6:31 PM
Tiny
BLACKOP555
  • EXPERT
Usually it will just allow the vehicle to crank and not fire up if the theft light is bad. Put key in ignition and put in on position and leave for 30 mins. Come back turn it off and back on and try to restart it. Any better?

You can have a gm dealer look at it and see if the antilock system and reader is functioning properly. I dont think its anti theft related.

You can do a permanant bypass on this system.
See the PLJX bypass kit at www. PASSLOCK2. Com
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Saturday, September 20th, 2008 AT 8:41 AM

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