What temp is your jeep running at
07-29-2011, 12:01 PM
#16
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Year: 1994
Model: Cherokee
Engine: 4.0L i6
im running a 160 in my 94 cherokee (4x4 4.0). I never have issues with overheating, even in heavy slow moving high heat traffic, ac blows cold and it doesnt over heat. man i love jeeps! *knocks on wood*
07-29-2011, 12:22 PM
#17
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
Actually, that's false. On OBD-II systems, the PCM does not monitor the t-stat....it monitors when the coolant sensor sees 160F (a completed heat cycle is counted) and when the coolant sensor sees 218F (turns on efan, if equipped with HD cooling).
07-30-2011, 08:01 AM
#18
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Year: 1999
Model: Cherokee
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also b4 i get into this water pump anyone else change one yet if so how hard is it and how long will it take
07-30-2011, 08:59 AM
#19
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Year: 1998
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OBD-II uses the O2 sensor(s) to determine rich/lean mix. Ours runs fine year round with a 180. It's of no significance how long it takes u to swap a pump....take u r time, clean the sealing surfaces sterile, use a thin layer of rtv on both sides of the gasket and DO NOT OVER TIGHTEN THE BOLTS.
07-30-2011, 11:28 AM
#20
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Year: 1999
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OBD-II uses the O2 sensor(s) to determine rich/lean mix. Ours runs fine year round with a 180. It's of no significance how long it takes u to swap a pump....take u r time, clean the sealing surfaces sterile, use a thin layer of rtv on both sides of the gasket and DO NOT OVER TIGHTEN THE BOLTS.
07-30-2011, 12:00 PM
#21
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Year: 89
Model: Cherokee
Engine: 4.0
My 88 XJ runs about 150 on freeway or long highways.In stop and go traffic on a hot summer day it climbs to about 190-200 but as soon as I start driving it creeps back down to about 150. I wired my AC fan to a switch so its always on when i want it to be this helped me a lot.
07-30-2011, 12:21 PM
#22
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Year: 1993
Model: Grand Cherokee
Engine: V8
With my 5.2, going down the road, 200ish, provided its not over 100 degrees. Lately its been 101 to 105, normal now is 215ish. In traffic, its peaked at 220 then dropped the minute I started rolling. AC full blast listening to tunes the whole time.
Ron
Ron
07-31-2011, 06:10 PM
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Year: 1996
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when you did the rad did you back flush the entire system? if not the sediment in the system accumulates and then if you used hose water it took those minerals and got worse. only used distilled water in the cooling system. hose water will eat it alive
07-31-2011, 06:13 PM
#28
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Engine: .30 over 4.0
160 bouncing down the freeway at 75-80 in 100+ degrees. 180-190 in city in stop n go in 100+ degrees. I've actually tried to get to 200 & I can barely reach 190.
07-31-2011, 06:15 PM
#29
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Year: 1999
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Originally Posted by 96_xj
when you did the rad did you back flush the entire system? if not the sediment in the system accumulates and then if you used hose water it took those minerals and got worse. only used distilled water in the cooling system. hose water will eat it alive
07-31-2011, 06:44 PM
#30
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Year: 1998
Model: Cherokee
Engine: 4.0L
99XJ,
All I have to say about those pictures is OHHHH MY GOSH...... ;that is some muddy coolant.
You should do a chemical clean and flush of that system, then remove the radiator and have it chemically cleaned.
Replace the thermostat with a 195*, replace the thermostatic clutch fan with one from a ZJ, and replace the radiator cap.
That should keep your engine running cool....
All I have to say about those pictures is OHHHH MY GOSH...... ;that is some muddy coolant.
You should do a chemical clean and flush of that system, then remove the radiator and have it chemically cleaned.
Replace the thermostat with a 195*, replace the thermostatic clutch fan with one from a ZJ, and replace the radiator cap.
That should keep your engine running cool....