00 XJ Cyln 6 misfire? rough idle, hops and drives rough
11-25-2012, 08:37 PM
#1
CF Veteran
Thread Starter
Join Date: Jul 2009
Posts: 1,004
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1992
Model: Cherokee
Engine: Inline 6 4.0L
00 XJ Cyln 6 misfire? rough idle, hops and drives rough
my 2000 jeep has had a rough idle. it has begun 'jumping" or surging/stalling briefly at 45mph. check engine light came on today. I attached the printout from the engine codes. cylinger 6 misfire. i just replaced the spark plugs, and it didnt help.
vaccum leak?
injector fault?
High or low Fuel pressure?
vaccum leak?
injector fault?
High or low Fuel pressure?
11-25-2012, 09:25 PM
#2
Newbie
Join Date: Nov 2012
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Disconnect #6 fuel injector plug while running.if it makes no difference leave it off for 20-30 seconds and see if it throws an open injector circuit code.this will tell you if its the injector or wiring.my 2000 wiring in that area was stuck together from heat and i am currently battling this same problem.check batt with voltmeter cranking and charging.if it drops below 8.5 while cranking you have a bad batt
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
27
07-26-2022 07:52 PM
rdr8887
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
08-25-2015 11:12 PM
rdr8887
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
08-24-2015 07:48 AM
Ye Ol' Cherokee
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
08-22-2015 01:43 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)