2000 xj runs rought at 1200 rpm

J

jimbug8796

NAXJA Forum User

Location

new jersey

• Aug 15, 2014

• #1

I have a 2000 xj with 121,000 on it it now has a shake/miss at 1200 rpm but is ok at higher rpm. does any one have any idea? Also had dealer put new rear main seal in 1000 miles ago and it looks like it is leaking again has any one had this problem?thanks::

 

CompleteCherokee

NAXJA Forum User

Location

Acworth, GA

• Aug 15, 2014

• #2

shake / miss could be plug, coil, vac leak, etc. Just have to dig further to figure out exactly what is causing it.

 

J

jimbug8796

NAXJA Forum User

Location

new jersey

• Aug 15, 2014

• #3

I replace plugs and coil found cracks in the first three injectors ordered new injectors.hope that's it.vacuum lines I sprayed with carb cleaner no change .

 

CompleteCherokee

NAXJA Forum User

Location

Acworth, GA

• Aug 18, 2014

• #4

the cracked injectors are a common issue, and could very well be the problem.

 

J

jimbug8796

NAXJA Forum User

Location

new jersey

• Aug 18, 2014

• #5

replaced them today and has new intake and gasket. still their.

 

CompleteCherokee

NAXJA Forum User

Location

Acworth, GA

• Aug 19, 2014

• #6

have you checked to see if there are any codes? Did you look at the harmonic balancer, are there any parts of the elastomer band that are not even / pushing out from the balancer?

 

J

jimbug8796

NAXJA Forum User

Location

new jersey

• Aug 20, 2014

• #7

did not check the balancer but will thanks.also thought it might be a torque converter shutter.

 

CompleteCherokee

NAXJA Forum User

Location

Acworth, GA

• Aug 21, 2014

• #8

sadly, it could be lots of things. Process of elimination is only way to narrow it down