Quote:
Originally Posted by Sudsy
I have read a lot about the Chevy 8.1 V8. The ignition failures are most commonly the wires. Next in line are the plugs. I don't much mention of changing coils and I would never buy a 10 pack for an 8 cylinder motor.
So.
Pull the #4 plug and look at it. It may or may not show problem. You could swap the #3 and #4 plugs and wires and see if the problem follows. Easiest would be to swap the plug wires between the cylinders.
THESE ARE NOT AT ALL LIKE THE FORD V10 COILS
Given the age and low mileage I suspect a set of wires will do it.
Sudsy
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He was lucky enough to get the code. A lot of the time you just have a random miss with no code. So I would delicately just work on 4 and see if the code goes away. Not messing with any other cylinder. No swapping around. That's the best way to get this taken care of without chasing your tail because you started swapping more things out than you had to.
Why the Ford coil comment? You think I only work on Fords? I was actually using what I learned on a Cadillac to give advice here.