Chevrolet Silverado 1998 z71.

Asked by Jan 05, 2016 at 02:06 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

Chevrolet Silverado 1998 z71 v8.   Truck
overheated suddenly , heads cracked , bought
brand new ones , also bought new piston and
rings. One push rod . New oil pump , plugs ,
cap , rotor and.   But  used distributor .  After all
this the truck will not start . Fuel pump is
working and the pressure is fine at 60 psi .  Im
having a friend look it over . Trouble shooting
he says the brain is has no communication .
When he hooked up a code reader it wont even
register any info . Totaly blank on thr scanner.  
Do u have any ideas on what the problem
could be ?

5 Answers

66,195

Check fuses. I know there is one for the computer. But check all of them, I forget what it is but the data port and pcm use to be powered on a cig. lighter circuit.

I just put a new 5.7 in my 1998 z71 and the check engine light is on the code says camshaft position sensor is bad I have already put 2new ones in it and still throws the same code dose any know what mite wrong

I just put a new 5.7 motor in my z71 and the check engine lights on the code says it's the camshaft position sensor is bad I have replaced it twice and rotor and cap it's all new. Dose anyone no why it's throwing that code

66,195

You probably need to have the timing set with a professional scanner. It may be the timing correlation between the crankshaft sensor and the camshaft sensor is not right, and the only way to get it back is with a good scanner.

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