Intermittent No Start - 5.3 L59 swap - Injectors Not Firing - The 1947 - Present Chevrolet & GMC Truck Message Board Network



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Intermittent No Start - 5.3 L59 swap - Injectors Not Firing

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10-09-2023, 11:08 AM

racecougar

Registered User

Join Date: Jan 2013

Location: Imperial, MO

Posts: 999

Re: Intermittent No Start - 5.3 L59 swap - Injectors Not Firing

Quote:

Originally Posted by Richard

Maybe check the grounds. Engine to chassis, battery to chassis and ecm to chassis. Would also check battery cables.

Done. If anything, I have more ground paths than the factory. ECM/TAC module/engine grounds are directly tied to the chassis and the battery; they do not have to rely on the chassis alone.

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