studdering 4.0 WTF.......!

WrenchMonkey · 07-05-2011, 08:33 PM

Quote:

Originally Posted by tjrider

Note to self.... Do NOT use E3 spark plugs in a distributorless 4.0. They don't like them!!!!!!

So that was it? Or you tried em and made it worse?

eighty3bronco · 07-05-2011, 10:10 PM

i was going to try the E3's and all the reviews that i read said that they were junk.... Did that fix your problem??? i have been fighting the same problem for a while.

tjrider · 07-06-2011, 07:34 AM

Coppertop told me to try changing them out, and I read some threads about them online. The 4.0s are very sensitive to what plugs you use. Went with a set of autolites and it runs like a champ. Sounds stronger too. So far everything is good

eighty3bronco · 07-06-2011, 08:59 PM

did you have any backfiring when it was having problems. my '99 cherokee will stumble for a few miles unless i go to WOT which i don't like to do since it likes gas then...

i think i might change out the plugs.

tjrider · 07-07-2011, 07:27 AM

Yes, when it would jerk and buck I could hear it in the exhaust pipe. If your running double prong plugs, that's probably your problem. It runs 100% better with better mpg too.

07-05-2011, 10:10 PM	#2
eighty3bronco anywhere but there Join Date: Jan 2007 Location: Blanchester, Oh Posts: 174	i was going to try the E3's and all the reviews that i read said that they were junk.... Did that fix your problem??? i have been fighting the same problem for a while. __________________

07-06-2011, 07:34 AM	#3
tjrider Join Date: May 2009 Location: fairfield Posts: 320	Coppertop told me to try changing them out, and I read some threads about them online. The 4.0s are very sensitive to what plugs you use. Went with a set of autolites and it runs like a champ. Sounds stronger too. So far everything is good __________________ If you don't want it broke, don't let me drive it....

07-06-2011, 08:59 PM	#4
eighty3bronco anywhere but there Join Date: Jan 2007 Location: Blanchester, Oh Posts: 174	did you have any backfiring when it was having problems. my '99 cherokee will stumble for a few miles unless i go to WOT which i don't like to do since it likes gas then... i think i might change out the plugs. __________________

07-07-2011, 07:27 AM	#5
tjrider Join Date: May 2009 Location: fairfield Posts: 320	Yes, when it would jerk and buck I could hear it in the exhaust pipe. If your running double prong plugs, that's probably your problem. It runs 100% better with better mpg too. __________________ If you don't want it broke, don't let me drive it....