Missfire when A/C is running
Missfire when A/C is running My 02' LS1 missfires when I put the AC on. I can hear some weird noise by the drivers side of the motor. Plugs and wires were replaced months ago, as well as O2 sensors. Not throwing any codes. Any ideas?
I will take a look at that. Now that you mention the belt, I do hear it 'chirp' when letting up after hard acceleration. Hopefully that is it. Would it be possible to change the clutch only? Thanks!
Last edited by TedsB4Csled; Sep 2, 2008 at 05:57 PM.
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Check for a cracked plug. I had the same issue, it would miss slightly at idle and couldn't really tell until the AC was on then I could feel it missing even more. I hooked up HP Tuners and scan for misfires, which pointed to the #2 cylinder. I pulled the plug and sure enough the ceramic area was cracked. Replaced it and problem solved.
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Check for a cracked plug. I had the same issue, it would miss slightly at idle and couldn't really tell until the AC was on then I could feel it missing even more. I hooked up HP Tuners and scan for misfires, which pointed to the #2 cylinder. I pulled the plug and sure enough the ceramic area was cracked. Replaced it and problem solved.
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Verdad Gallardo Unplug the coil pack and remove from valve cover. it will help you get to some of the back plugs.
http://www.ls1howto.com/howto/fbody/...ecoilpacks.jpg
Dont unbolt each coil from bracket just the 5 bolts in this pick and all 4 coils will come out together.
http://www.ls1howto.com/howto/fbody/...ecoilpacks.jpg
Dont unbolt each coil from bracket just the 5 bolts in this pick and all 4 coils will come out together.
Unplug the coil pack and remove from valve cover. it will help you get to some of the back plugs.
http://www.ls1howto.com/howto/fbody/...ecoilpacks.jpg
Dont unbolt each coil from bracket just the 5 bolts in this pick and all 4 coils will come out together.
http://www.ls1howto.com/howto/fbody/...ecoilpacks.jpg
Dont unbolt each coil from bracket just the 5 bolts in this pick and all 4 coils will come out together.
I will try again when it gets cooler. Thanks again I appreciate the help.
