XbajajeepX
NAXJA Forum User
- Location
- So. Lake Tahoe
I just changed my spark plugs and wanted to see if you guys think these look how they are supposed to?
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Do these spark plugs look ok?
- Thread starter XbajajeepX
- Start date
XbajajeepX
NAXJA Forum User
- Location
- So. Lake Tahoe
yeah I was wondering about that one..... What would normally cause that?? Oh these are from a 2001 by the way.
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
heat looks a bit off on 2 of them. looks like some dimpleing but I could not tell without a macro. otherwise they look fine. A good fuel system cleaner and a combustion chamber cleaner and you should be great
XbajajeepX
NAXJA Forum User
- Location
- So. Lake Tahoe
Actually, looking over them again, 3 of them are brown on the other side than taken in the photo..
XbajajeepX
NAXJA Forum User
- Location
- So. Lake Tahoe
I have been getting very poor mileage lately... Do you think this would have anything to do with it??
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
if you have a haynes manual, there is a nice picture chart in the back you can use as a rule of thumb.
XbajajeepX
NAXJA Forum User
- Location
- So. Lake Tahoe
Don't have one at the moment..
GrimmJeeper
NAXJA Forum User
- Location
- Gardena, CA
stop using NGKs and put champion truck plugs in there. well i dunno on a 2k but the older motors dont seem to run right with anything but champs.
XbajajeepX
NAXJA Forum User
- Location
- So. Lake Tahoe
Hmmmm... Those are the plugs I got from the dealer... I put champions in today.
I use NGKs in my 96 and got a small mileage improvement, works fine.
In fact that's what I always used in my 4.0 WJ which I think is the OEM plug.
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
Grim, while I agree that champions run great in a 4.0. I have had great results with NGK as well. In fact the stroker runs noticeably better on NGK's. Plus It is easier to pick out different heat ranges with NGK
