8Mud
NAXJA Forum User
- Location
- Central Germany
88 XJ 4.0 auto. Was a dealer throw away, I picked up cheap, 100,000 miles. I´ve found a bunch of problems, from bent pins to fried wiring.
It has a stutter at around 2000 RPM and the horses seem to fall off after that. I washed it recently and it was so thankfull it ran good for almost five days. Then started again, with the stutter/cross fire.
Grounds? AllData recommends, retiming (crossfire). Cranks about five times before turning over, occasional high idle at start up. Ignition system seems OK. Compression 150, fuel pressure and regulation OK, vacume seems OK. Fuel filter replaced along with air filter (really helped), crankcase ventilation system OK. Middle cylinders seem to burn a touch leaner than the rest, also a bit more compression.
Fixed the biggest problem, faulty kill switch in the alarm system.
Any ideas would be appreciated.
I´m a newbe, been reading the threads for awhile, a lot of guys that really know ther XJ´s seem to hang out here. I´m still learning the pre 91 models.
It has a stutter at around 2000 RPM and the horses seem to fall off after that. I washed it recently and it was so thankfull it ran good for almost five days. Then started again, with the stutter/cross fire.
Grounds? AllData recommends, retiming (crossfire). Cranks about five times before turning over, occasional high idle at start up. Ignition system seems OK. Compression 150, fuel pressure and regulation OK, vacume seems OK. Fuel filter replaced along with air filter (really helped), crankcase ventilation system OK. Middle cylinders seem to burn a touch leaner than the rest, also a bit more compression.
Fixed the biggest problem, faulty kill switch in the alarm system.
Any ideas would be appreciated.
I´m a newbe, been reading the threads for awhile, a lot of guys that really know ther XJ´s seem to hang out here. I´m still learning the pre 91 models.
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