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which engine?
2001 WJ , jeep.
wrong spark plugs!
gapped wrong!
wrong wire order?
do tell engine you have there.
do tell park plug brand and numbers.
do tell if engine has coil packs, how many, and how you wired them back..
now answering for USA cars, (not exports. or those jeeps made in Europe. )
the 4.0L engine with the 3 coil rack pack? with 6 spark wire sets?
the 4.7liter has 6 coil packs coil over plug COPS.
that can not be wired wrong but could be unplugged in primary side.
my guess, wrong parts, wrong gap
or not reconnected right.
if spark is lost, scan the PCM cranking, look for DTCs/
A Chiltons/Haynes repair manual that covers this vehicle make/model/year will have the information you seek. Plus a lot of other goodies. I'll give you the gap for the 3.3 V6 used in the 1984 thru 1995 (we use it for our 1998 Grand Caravan). okay per tune-up specs, that spark plug gap is, drum roll please, 0.050 inch/1.3mm. These specs are for the OEM spark plugs Champion RN14MC5. Best of luck accessing the 3 on the back side.
you have to remove the top cover of the motor...the silver part that quad 4 on it they are under there, I don't remember how many bolts there are but that's where they are !
If this is a four cylinder you will need to remove the plastic cover from over the valve cover, you will then find the spark plugs located deep inside the head on top. If this is a 6 cylinder the spark plugs are located in between the gaps in the exhaust manifold.
Here's a great way to be sure. Go to www.acdelco.com and enter your vehicle info. It will then give you different options of plugs and tell the difference in competitors.
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