Spark plugs
#1
Newbie
Thread Starter
Join Date: Jul 2011
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Spark plugs
Spark plugs covered in soot and oil. Just replaced less than 50 miles ago. Starts fine when cold. Dies when it's put in gear. Won't restart after it's hot. What's inside my engine that shouldn't be?
#3
Senior Member
Join Date: May 2008
Location: Michigan
Posts: 814
Likes: 0
Received 7 Likes
on
7 Posts
Year: 1996
Model: Cherokee
Engine: 4.0
X2 sounds like it is running rich, A scan tool can tell you what the temp sensor is reading. My dad had this problem, his temp sensor read -48* all the time.....This told the PCM to dump fuel....all the time.
#7
Newbie
Thread Starter
Join Date: Jul 2011
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
It could be CTS I haven't been paying attention to the temp Gauge since it won't run long enough to get hot
Last edited by Trail Rig 97 XJ; 08-19-2011 at 06:22 AM.
Trending Topics
#8
CF Veteran
Join Date: Feb 2010
Location: Oroville, CA
Posts: 12,367
Likes: 0
Received 19 Likes
on
18 Posts
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
The CTS and water temp sender are two different things. One (CTS) is for the ECM to read the coolant temp, and the other is only for the gauge. Have you check the coolant level lately?
#9
#10
#11
Newbie
Thread Starter
Join Date: Jul 2011
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
having problems again. Ive replaced damn near everything on this jeep. new crank pos sensor, throttle pos sensor, CTS, pulled a head from the junkyard, took it apart, cleaned it up, polished the combustion chambers a little bit, ported it, new head gasket, intake/exhaust gasket, valve cover gasket. head is sealed great, all cyl at 130+ psi. did the Neon 703 injector swap with new O-Rings, spark plugs, wires, cap, and rotor button.
CTS seemed to work great this weekend but today had starter problems. jumped the starter and that worked a couple times but besides that after i jumpered the starter it was doing the same thing, wanting to die when i come to a stop. its like it just doesnt want to run right. im gonna put another new set of plugs in it tomorrow and drive it and see what they look like. I really dont see any mechanical problems causing this since its basically a brand new engine. I'm starting to think this jeep has some major electrical problems. turn signals dont work (never have since ive owned it), when i try to turn on my hazard lights my part time light comes on and i hear a buzzing sound (hazards wont work either), now the starter issue. I guess my real question is could electrical problems be causing this sort of problem? everytime i replace something it seems to work for a few days and then starts running terribly again.
CTS seemed to work great this weekend but today had starter problems. jumped the starter and that worked a couple times but besides that after i jumpered the starter it was doing the same thing, wanting to die when i come to a stop. its like it just doesnt want to run right. im gonna put another new set of plugs in it tomorrow and drive it and see what they look like. I really dont see any mechanical problems causing this since its basically a brand new engine. I'm starting to think this jeep has some major electrical problems. turn signals dont work (never have since ive owned it), when i try to turn on my hazard lights my part time light comes on and i hear a buzzing sound (hazards wont work either), now the starter issue. I guess my real question is could electrical problems be causing this sort of problem? everytime i replace something it seems to work for a few days and then starts running terribly again.
Thread
Thread Starter
Forum
Replies
Last Post
neocracka
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
03-28-2020 05:48 PM
carverdave
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
02-06-2019 08:55 AM
BlvdKreeper
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
09-20-2015 01:16 PM
Blue04
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
8
09-12-2015 10:54 AM
neocracka
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
09-05-2015 06:50 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)