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Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 16774
Experience:  15 years GM master tech
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I have 1999 c3500.5.7l,cut off on interstate,plugged in otc

Customer Question

i have 1999 c3500.5.7l,cut off on interstate,plugged in otc scanner,no code.tried 3 different scanners,no codes.engine cranked over like it had excessive advance.checked tdc #1 rotor was off about an inch.checked again,it was off even more.pulled cam,found teeth slightly worm,changed cam,and updated to mfi inj.10,000 mi. on overhauled eng.set timing marks cam gear at bottom,crank gear at top but did not make sure #6 cyl.on tdc.checked tdc #1,is right on.will not start or fire on gas poured in intake.changed computer,no difference
Submitted: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.

I am sorry for the long wait

when the engine was up on TDC and the distributor put in was the rotor pointing at the little # ***** inside the distributor ?