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Re: Help before I go crazy. 99 suburban 5.7 vortec wont start.
Check ALL fuses, ecm 1 and ecm first, after that if you have fuel and spark I would pull the upper intake to check the cpsi fuel system and go from there
By the way, we have killed several vortec 5.7 engines here but have never ever bent a valve unless the cam timing was way way off----
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