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Engine will not crank over?

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It cold be the ignition switch but it could be a few other things as well. It could be a neutral switch or there is afuse on the inside of ht truck for start as well. I'm sending the schematic along..you shold be able to follow this with a test light to see what's wrong. make sure to check fuses first.....


https://www.2carpros.com/forum/automotive_pictures/406719_start_1.jpg

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Thursday, September 3rd, 2020 AT 4:51 PM (Merged)
Tiny
DMS3412
  • MEMBER
  • 5 POSTS
Thank you. I'll give it a try tonight when I get home. Hopefully it's something simple like that. Haha.
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Thursday, September 3rd, 2020 AT 4:51 PM (Merged)
Tiny
KKEY
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET SILVERADO
  • 0.5L
  • V8
  • 4WD
  • AUTOMATIC
  • 225,000 MILES
Engine wont crank/new starter battery/transmission professionally rebuilt. Starter makes a loud clunk. Took both belts off still nothing.
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Thursday, September 3rd, 2020 AT 4:51 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If the starter makes a loud clunk, two things either engine is locked up or the torque converter bolt has locked against the block. So try to move by hand backwards to see if loosens the torque converter bolts. If it does then have transmission professional fix it.
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Thursday, September 3rd, 2020 AT 4:51 PM (Merged)
Tiny
LONGGONE
  • MEMBER
  • 2 POSTS
  • 2002 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 75,000 MILES
The gear selection indicator on the dash is lit but the only gear selection that lights up is reverse, when in park the doors do not unlock automaticly but the truck will restart. Is this problem a switch or sending unit and where is it?
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Thursday, September 3rd, 2020 AT 4:51 PM (Merged)
Tiny
PROTECH1980
  • MEMBER
  • 901 POSTS
A common problem that your describing is a neutral back up switch, some would call it a range switch, it is on the left side of transmission and has two electrical connectors on it, do you have any shifting problems or know of any eng/trans codes? GM came out with an updated part, here is a picture
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Thursday, September 3rd, 2020 AT 4:52 PM (Merged)
Tiny
GTOFARM
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 60,000 MILES
Truck started wed went out to start thur will not start, battey is good lights come on turn key and nothing happens no ckick
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Thursday, September 3rd, 2020 AT 4:52 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check battery condition and connections if okay could be one of the following causing it.

Stater, starter relay, transmission range switch and ignition switch-
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Thursday, September 3rd, 2020 AT 4:52 PM (Merged)
Tiny
RBOZZIE
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET SILVERADO
  • 150,000 MILES
When starting it doesn't start on the first try. It kinda spins. When I try again it starts.
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Thursday, September 3rd, 2020 AT 4:52 PM (Merged)
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Starter solenoid is sticky/misfiring. Easiest to just change complete starter or live with it till it fails completely. Mine has been doin it occaisionally for a couple yrs now. So I live with it. I had another 1 that failed everytime so I took it apart and turned out the solenoid piston was rusted stuck so I cleaned and reassembled and all was good.
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Thursday, September 3rd, 2020 AT 4:52 PM (Merged)
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Also could be the starter dive(gear) itself. In that case it has to be replaced or a new starter bought.
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Thursday, September 3rd, 2020 AT 4:52 PM (Merged)
Tiny
SKOTKEES
  • MEMBER
  • 2 POSTS
  • 2002 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
I have a 2002 Chevy Silverado P/U 4.8L. I believe my starter is out as I have excellent power (all the lights come on with no dimming), have even tried to jump it but can't even get clicking. Is it my starter (which I have tapped on with a hammer as suggested by another) or is it my ignition switch which I am not sure of the location? I have a Fluke Meter but am not sure how to test either the starter or the ignition switch which I can't find.

Thanks,

Skot Kees
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Friday, February 5th, 2021 AT 8:36 AM (Merged)
Tiny
TOOOMANYTOYS
  • MECHANIC
  • 513 POSTS
I would start by jumping the starter relay located under the hood in the fuse box. Remove the starter relay and use a jumper from 87 to 30 as labeled on the relay. If it starts it going to be something on the ignition side, or a bad relay. If it doesnt start the problem is most lilekly be on the starter side.
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Friday, February 5th, 2021 AT 8:36 AM (Merged)
Tiny
SKOTKEES
  • MEMBER
  • 2 POSTS
Thank you.

Before I received your response I removed the starter's mounting bolts and loosened the starter with intention of removing to check ground connection. I then received your response and decided to reattach the starter rather than wiggling it around the maze.

I jumped the relay and the starter was cranking the engine fine. I replaced the relay and the engine cranked successfully multiple times.

Is there something else I should be concerned about? Is it a relay going bad, or was it the starter was just jammed? Any additional insight would be appreciated so that I may be further enlightened.

Thanks,

Skot
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Friday, February 5th, 2021 AT 8:36 AM (Merged)

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