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Engine does not crank over?

Tiny
PURELUCK
  • MEMBER
  • 2001 NISSAN FRONTIER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 101,026 MILES
Ok, I check the sparks, it dont have any spark when cranking over. When trying to crank over the distributer router dont spend/turn at all (I took off the dis. Cap to check). I also checked the distributer incase it had a broken shaft but as I turn the gear the router turns. Just took off everything to look at the timing belt but its still there and in good shape. I dont get it im very confused right now. Shouldnt the timming belt be connected to the main pulley and the cam shaft sproket all should be turning.
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Saturday, June 26th, 2010 AT 10:45 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
If you remove the distributor cap and the rotor is not spinning then the distributor is broken or the cam is not spinning.

I would suggest starting with checking for compression. This will tell us if the valves are moving in order to build pressure.

https://www.2carpros.com/articles/how-to-test-engine-compression

If there is no compression then the cam is not spinning. If this is the case, I would think there is an issue with the belt that is not spinning the cam.

This means we need to inspect the tensioner.

I am attaching the info below on this. Please run through this and let us know what you find.

Thanks
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Monday, September 20th, 2021 AT 11:36 AM

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