alopeks
NAXJA Forum User
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- D/FW Metromess
Where do I begin??
'99 XJ, 4.0 (reman, installed 11/19) AW4, NP242, stock gears, 3" lift, 31s.
246K on the body/trans, about 37K on the motor.
Three times now, all a week or two apart, the engine has stalled within 30-90 seconds after seeming to start normally. First time, 4 weeks ago, was right after replacing the battery (new Optima red top) and resulted in replacing the alt, which failed a bench test but was warrantied by O'Reilly's. Second time (a week ago) it stalled in almost exactly the same place, just as I was leaving the alley. Was able to get it started only after several minutes of cranking, but once it chugged to life, it seemed to run fine after a minute. Today I was farther down the road, but not much. I also noticed that the temp gauge seemed not to work while it was cranking but not starting, but again after a few minutes it finally chugged to life, and then ran fine. So now I don't even know where to start looking...
Temp sending unit failing? Engine thinks it's too hot/too cold so changes the air/fuel ratio when it shouldn't? Old clogged cat that only restricts too much on occasion? Afaik, it's original...
I've been getting a CEL related to torque converter lock up solenoid (P0740) on and off for a while, but it doesn't seem to coincide with the stalling. Unless every now and then it locks up the TC at idle and stalls the engine??
I fear I have reached the limit of my skills... Help!
-alopeks
'99 XJ, 4.0 (reman, installed 11/19) AW4, NP242, stock gears, 3" lift, 31s.
246K on the body/trans, about 37K on the motor.
Three times now, all a week or two apart, the engine has stalled within 30-90 seconds after seeming to start normally. First time, 4 weeks ago, was right after replacing the battery (new Optima red top) and resulted in replacing the alt, which failed a bench test but was warrantied by O'Reilly's. Second time (a week ago) it stalled in almost exactly the same place, just as I was leaving the alley. Was able to get it started only after several minutes of cranking, but once it chugged to life, it seemed to run fine after a minute. Today I was farther down the road, but not much. I also noticed that the temp gauge seemed not to work while it was cranking but not starting, but again after a few minutes it finally chugged to life, and then ran fine. So now I don't even know where to start looking...
Temp sending unit failing? Engine thinks it's too hot/too cold so changes the air/fuel ratio when it shouldn't? Old clogged cat that only restricts too much on occasion? Afaik, it's original...
I've been getting a CEL related to torque converter lock up solenoid (P0740) on and off for a while, but it doesn't seem to coincide with the stalling. Unless every now and then it locks up the TC at idle and stalls the engine??
I fear I have reached the limit of my skills... Help!
-alopeks