The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - cranks but no spark

95 S_Trucker · 08-27-2018, 07:57 AM

On the drivers side of the engine, between the oil pan and exhaust manifold, behind the power steering pump, there is a ground. Its only job is to act as a ground for all 8 ignition coils. The wire was corroded about 2" into the harness. I've spent 12 hours on a truck until I found that one. It would start up, and run for a few minutes, then sputter and shut off. It would start after it sits for 45 min.

I've since ran into that same problem on 2 other trucks in my shop, but I've been able to find them quicker now.

08-27-2018, 07:57 AM	#4
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,178	Re: cranks but no spark - tough problem for you On the drivers side of the engine, between the oil pan and exhaust manifold, behind the power steering pump, there is a ground. Its only job is to act as a ground for all 8 ignition coils. The wire was corroded about 2" into the harness. I've spent 12 hours on a truck until I found that one. It would start up, and run for a few minutes, then sputter and shut off. It would start after it sits for 45 min. I've since ran into that same problem on 2 other trucks in my shop, but I've been able to find them quicker now.