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-   -   Bad PCM??????? (https://chevroletforum.com/forum/silverado-fullsize-pick-ups-21/bad-pcm-58661/)

shetluck June 9th, 2013 3:40 PM

Bad PCM???????
 
Engine quit, good compression, spark was irratic and weak, replaced the cam sensor, crank sensor, oil pressure sensor, cap ,rotor, wires and plugs,what did I miss, It sounds to me like the timing is out, sometimes it trys to pop out the throttle body , it acts like the ignitiopn system has no idea what the rest of the engine is doing.the only thing left is the PCM , but its only got 116K miles on it , seems a bit early for that doesn't? Also replaced coil and ignition module.


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