which spark plugs?
01-09-2012, 11:27 AM
#1
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Year: 2000
Model: Cherokee
Engine: 4.0L
which spark plugs?
I took on some water last night wheeling...the mud hole was deeper than I thought and now I got a cylinder 3 misfire. so I believe its just the spark plugs...everything seems to be ok, other than a moan, but I think its just the ac compressor. Anyways to the point, what are some of the best spark plug for the jeeps? It's a 2001 if that matters at all. Thanks ahead of time!
01-09-2012, 12:21 PM
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Year: 1997
Model: Cherokee
Engine: 4.0
the gap requirements are on a sticker under your hood with other info. I believe its a .035 gap but my 97 might not be the same as yours.
Edit: correct cap is. 035
Edit: correct cap is. 035
Last edited by Slimgoaty; 01-10-2012 at 11:51 AM.
01-09-2012, 01:26 PM
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Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Yeah mine is also .035. I just hear that ngk coppers are better for later models while champion coppers are better for earlier
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01-09-2012, 01:33 PM
#8
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Year: 1999
Model: Cherokee
Engine: 4.0
NGK Coppers are my recommendation for the 00-01 with the distributorless ignition. Champions are okay, but the gap seems to enlarge out of spec quicker than the NGKs do.
Gap is .035 for all of the 4.0 engines.
Gap is .035 for all of the 4.0 engines.
01-09-2012, 02:23 PM
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Year: 2000
Model: Cherokee
Engine: 4.0L
I went with the Bosch coppers...fired right up when I got done, so at least no hitches there...the only thing I have an issue with now is my ac compressor has a deep whine but only when the clutch for it is disengaged, when it kicks on, noise is gone, and it is really annoying. Any ideas?
01-10-2012, 09:02 AM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
I went with the Bosch coppers...fired right up when I got done, so at least no hitches there...the only thing I have an issue with now is my ac compressor has a deep whine but only when the clutch for it is disengaged, when it kicks on, noise is gone, and it is really annoying. Any ideas?
