the misfire that wont go away
#1
Junior Member
Thread Starter
Join Date: Sep 2009
Location: lakewood ohio
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 il six
the misfire that wont go away
well i have installed hood vents and put in a cooler thermostat but my 2000 xj every once in reach 210 degrees and when i fire it up wil have the worst misfire in the world but it only does it when it reaches 210 im running outta ideas on what to do
#2
CF Veteran
Join Date: Sep 2009
Location: Grand Prairie, Texas
Posts: 1,142
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1998
Model: Cherokee
Engine: 4.0 HO I6
Research heat soak issue in cylinder 3, 2000 jeep cherokee. There is a TSB from Chrysler on it. Injector 3 needs some extra insulation around it.
#3
Junior Member
Thread Starter
Join Date: Sep 2009
Location: lakewood ohio
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 il six
#5
CF Veteran
Join Date: Jul 2009
Location: Keesler AFB, MS
Posts: 1,640
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
Do a wet and dry compression test and let us know the results. Do you have a CEL? Whats the codes? It could be a lot of things
Trending Topics
#8
Junior Member
Thread Starter
Join Date: Sep 2009
Location: lakewood ohio
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 il six
well it was doing it before this i believe, but last year i wrecked it around the block from my house and when i pryed it off the pole it was on i hurried up and drove it home then the surpentine belt pulley broke and it overheated for a second.
#10
Junior Member
Join Date: Dec 2009
Location: Fullerton, Ca
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
Year: 00
Model: Cherokee
Engine: 4.0L, K&N CAI
I would recomend you check compression too. I had a random misfire on cyl 2, would run a little rough at idle but plenty of power. #2 was 90 psi rest were 125-130, leak test showed major leakage so I tore it down and found that piston and cylinder wall damaged.
#11
Junior Member
Thread Starter
Join Date: Sep 2009
Location: lakewood ohio
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 il six
well i just rebuilt the motor and bored it 30 over im thinking worse case scenario the head gasket maybe
#12
CF Veteran
Join Date: Jul 2009
Location: Keesler AFB, MS
Posts: 1,640
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
Thread
Thread Starter
Forum
Replies
Last Post
jmarzo
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
16
10-18-2022 04:11 PM
Fiskdog
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
09-20-2015 12:26 PM
roystondrake
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
09-17-2015 11:14 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)