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**Richard** · 10-09-2023, 02:14 AM

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

10-09-2023, 02:14 AM	#4
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,720	Re: Intermittent No Start - 5.3 L59 swap - Injectors Not Firing Maybe check the grounds. Engine to chassis, battery to chassis and ecm to chassis. Would also check battery cables. __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746