2003 Chevy Truck wont start sometimes P0342

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nahaley
Posts: 2
Joined: Sat Mar 18, 2017 8:14 am
Vehicle: 2004 chevy silverado 5.3lt

2003 Chevy Truck wont start sometimes P0342

Postby nahaley » Sat Mar 18, 2017 8:22 am

Changed camshaft position sensor due to lack of power and black exhaust,after changing everything seemed fine, now after a couple weeks truck wont start sometimes, it will roll but won't start! Any suggestions?


nahaley
Posts: 2
Joined: Sat Mar 18, 2017 8:14 am
Vehicle: 2004 chevy silverado 5.3lt

Re: Truck wont start sometimes

Postby nahaley » Sat Mar 18, 2017 8:31 am

It is also showing a PO342 code

kev2
Posts: 6447
Joined: Sat Aug 29, 2009 4:24 pm

Re: Truck wont start sometimes

Postby kev2 » Sat Mar 18, 2017 8:57 am

There are no other codes or issues?
ideally a scanner to check if CMP signal is getting to PCM. Also check freeze frame for a clue.
Maybe check elec connector at CMP, tight corrosion free no bent pins, is there 12v - good ground and producing a signal,
Vehicle should start without CMP maybe on second attempt but start - I suspect there are other codes or issues.


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