Hi guys,
I don’t usually ask questions on a forum I don’t contribute to, but since my XJ is bought, not built, I don’t have too much you would be interested in. I have read and searched a lot though and gotten a few answers that helped fix things.
I have a problem that has been addressed multiple times in various forums, but still cannot figure it out. I want to stay loyal to my independent Jeep mech, but he cannot figure this out either. I've read at least 8 hours of threads but nothing seems to directly apply to what is going on.
2001 XJ Sport
142,000 miles all by me
Auto 4.0
Stock other than:
KN cone filter
Throttle body spacer
High flow exhaust
About a year ago I had coolant spray all over inside of hood, loosing coolant.
Dark sludge/sediment in coolant overflow tank, but looks perfect green in radiator.
NO water in oil.
Had mech replace radiator & thermostat, he used a plastic model as opposed to metal.
Still have gunk coming out into overflow, and heater not working.
Flush and fill the heatercore and rad about 3 times, heater now working again but weak. Tried new rad cap, but it is listed at 18psi, not 16, problem?
Now overheating at idle and heavy load. Pulling up 1-70 hills will overheat, especially if AC on. Turning AC off brings it back down usually.
Going from steady 210 with no slow rise, but rather one big jump up to 240ish, idiot light comes on.
Reduce load and turn off ac (or wintertime defroster) and needle jumps right back down. Not a slow decrease, but boom, back down to 210.
Replaced thermostat again, E fan seems to be working as it should (comes on with AC, comes on at about 215)
Everything I have read pointed to the fan clutch so I had it replaced.
No apparent leakage from waterpump. Rad totally full when cold, overflow where it should be. Overflow water still dark, but looks great in rad.
Still broke.
Waterpump?
> seems that if I am right at 210 on the road generally that the pump is working.
Replace brand new rad?
Hoses?
I’ve looked for the 0331 code near the third spark plug, but can’t find the code, not looking in the right spot I guess.
Is the stock transmission cooler a potential problem? If it had blockage, would the water just bypass it, or is it mandatory that the water flow through there?
Is the fact that I have lots of rocks stuck in my AC condenser a potential problem? Ac still works fine, but could be limiting flow to the radiator.
Thanks.
I don’t usually ask questions on a forum I don’t contribute to, but since my XJ is bought, not built, I don’t have too much you would be interested in. I have read and searched a lot though and gotten a few answers that helped fix things.
I have a problem that has been addressed multiple times in various forums, but still cannot figure it out. I want to stay loyal to my independent Jeep mech, but he cannot figure this out either. I've read at least 8 hours of threads but nothing seems to directly apply to what is going on.
2001 XJ Sport
142,000 miles all by me
Auto 4.0
Stock other than:
KN cone filter
Throttle body spacer
High flow exhaust
About a year ago I had coolant spray all over inside of hood, loosing coolant.
Dark sludge/sediment in coolant overflow tank, but looks perfect green in radiator.
NO water in oil.
Had mech replace radiator & thermostat, he used a plastic model as opposed to metal.
Still have gunk coming out into overflow, and heater not working.
Flush and fill the heatercore and rad about 3 times, heater now working again but weak. Tried new rad cap, but it is listed at 18psi, not 16, problem?
Now overheating at idle and heavy load. Pulling up 1-70 hills will overheat, especially if AC on. Turning AC off brings it back down usually.
Going from steady 210 with no slow rise, but rather one big jump up to 240ish, idiot light comes on.
Reduce load and turn off ac (or wintertime defroster) and needle jumps right back down. Not a slow decrease, but boom, back down to 210.
Replaced thermostat again, E fan seems to be working as it should (comes on with AC, comes on at about 215)
Everything I have read pointed to the fan clutch so I had it replaced.
No apparent leakage from waterpump. Rad totally full when cold, overflow where it should be. Overflow water still dark, but looks great in rad.
Still broke.
Waterpump?
> seems that if I am right at 210 on the road generally that the pump is working.
Replace brand new rad?
Hoses?
I’ve looked for the 0331 code near the third spark plug, but can’t find the code, not looking in the right spot I guess.
Is the stock transmission cooler a potential problem? If it had blockage, would the water just bypass it, or is it mandatory that the water flow through there?
Is the fact that I have lots of rocks stuck in my AC condenser a potential problem? Ac still works fine, but could be limiting flow to the radiator.
Thanks.