92 Jeep Ch still over heating at idle after work

[stimac_911]

Hello,

I own a 1992 Jeep Cherokee 4.0 that still overheats at idle. My wife uses it as her mail car and she can make it overheat quick (she doesn't even use the AC.) It runs like a champ when it drives down the road....

Work Done:
New Radiator
New Temp sensors x2
2 Electric fans ( 1 push 1 Pull 12 -10 Inches on either side of the radiator)
New Thermostat
New Gauge (Old gauge was off by 15 Degrees)
New water pump

When the car idles; even with the electric fans on, it slowly overheats... Everything has been repaced and even my mechanic is clueless. I went to the dealership and the only thing they could come up with is that the water pump is running in reverse (wronge water pump.. As a side note the pump runs counterclockswise from the serpitine belt). I took the return off the radiator started the car and fluid was pumping out... So I do not think it is in reverse. The car runs fine when it goes down the road. It takes around 30 - 40 minutes to overheat at idle. When my wife drives mailbox to mailbox(or low idle 1000 - 1500 RPM) it overheats in 15 - 20 minutes From Ambient air to 260 DEGREES. Please help this is becoming a useless pease of sh...

Thanks
Chris

[fredjacksonsan]

Closed this one and transferred your comments to the similar thread.