Fouled Plugs Rough Running
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Teching In
Joined: Apr 2016
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Fouled Plugs Rough Running Hey All,
A little diagnosis help would be great.
I have an 06 Gen IV LR4 4.8 I have installed in my Jeep LJ. I have been able to get it fired up but it runs very rough with sluggish throttle response. I pulled the plugs this morning to check and also do compression testing and this is what I found. The curious thing however, is that prior to pulling the plugs I unplugged the coils one by one to see if anything would change how it ran. Only one plug would affect it when unplugged on each side, those correspond with the fouled plugs. I am very confused. No codes are showing up on the scanner.
by https://www.flickr.com/photos/123704863@N05/, on Flickr
A little diagnosis help would be great.
I have an 06 Gen IV LR4 4.8 I have installed in my Jeep LJ. I have been able to get it fired up but it runs very rough with sluggish throttle response. I pulled the plugs this morning to check and also do compression testing and this is what I found. The curious thing however, is that prior to pulling the plugs I unplugged the coils one by one to see if anything would change how it ran. Only one plug would affect it when unplugged on each side, those correspond with the fouled plugs. I am very confused. No codes are showing up on the scanner.
