Newbie with LS 6.0 Firing issues
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Newbie with LS 6.0 Firing issues I am helping a friend who has a LS 6.0, which my scanner tells me it came out of a 2004 GMC Denali. It's in a 50 ford pickup and it's running rough as a cob, however, it ran great 6 months ago. I put a timing light on each plug wire to see if they were firing. I am getting fire on cylinders 8,3, and 5. I also pulled the wire from the coils on all cylinders one at a time. These same three cylinders bogged the engine down when I pulled the plugs from the top of the coils, and none of the rest did.not. Have I had 5 coils go bad? The truck has been sitting for probably six months, and it's in a garage, but it has a rock floor and there is a LOT of moisture in the garage. Could that be a factor? Any suggestions? All help is greatly appreciated.
If it stays in storage a bit check all the wiring real close for damage from rats.
After that I'd look at the crank sensor.
No fire randomly on 5 coils isn't very likely to be caused by the coils just all the sudden failing.
After that I'd look at the crank sensor.
No fire randomly on 5 coils isn't very likely to be caused by the coils just all the sudden failing.
