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Dan
Dan, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1693
Experience:  Auto Technician
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Have a 2008 chevy avalanche 5.3 afm. Originally had a

Customer Question

Have a 2008 chevy avalanche 5.3 afm. Originally had a shattered #5 intake lifter. Pulled both heads to replace camshaft with updated oem camshaft as well as all lifters on the left bank. New timing chain and tensioner were installed as well and removed oil pan to remove debris. Flushed motor with oil change after 5 mins of running, replaced oil and filter again. Truck only ran for 100 miles before dying and will not run anymore. Currently have a crank no start problem. There is no spark and the lifters are not all being pumped up. I have cleaned all the screens for the vlom and have over 25psi cranking oil pressure. Vlom solenoids have 12.8 ohms resistance on each one as well. Fuel pressure is 62lbs cranking. The scan tool is picking up engine RPM with ignition timing set at 10 degrees. At this point I am lost?
Submitted: 1 year ago.
Category: Chevy
Expert:  Dan replied 1 year ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

Expert:  Dan replied 1 year ago.

Check power and grounds of the coil. Check if the PCM is sending the triggering signal to the coils.

Expert:  Dan replied 1 year ago.

Do you have a wiring diagram of the engine harness?

Customer: replied 1 year ago.
I do not have access to a wiring diagram currently unless I can find it on Google
Customer: replied 1 year ago.
I currently have the vlom off of the truck right now
Customer: replied 1 year ago.
Hello?
Expert:  Dan replied 1 year ago.

Here is the wiring diagram for the engine.

Expert:  Dan replied 1 year ago.

Check power and grounds of the coils and the triggering signal.

Expert:  Dan replied 1 year ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.

I do not get compensated for my time and resources unless you rate me.

Thanks