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Sometimes will not crank, but all lights come on

Tiny
MELODY7740
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
  • 4WD
  • AUTOMATIC
  • 1,000,000 MILES
I can get in and try to start the truck, sometimes it will start and some times it will not. When it will not start, all the lights come on and no crank. If I wait a while and try again, it may start.
I have already changed the ignition switch and that was not the problem. Any Ideas?
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Thursday, November 30th, 2017 AT 12:06 PM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
The better suspect is the neutral safety switch/transmission range sensor. Next time this happens, try cranking the engine after shifting to "neutral".
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Thursday, November 30th, 2017 AT 2:56 PM
Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
Mine does this too, very very occasionally. I have not been able to diagnose it for sure, but it seems to me to be a cable problem. Usually, I start tinkering with the battery cables, making them super tight, and then the truck starts.
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Thursday, November 30th, 2017 AT 6:02 PM

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