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  1. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    UPDATE - While early in the process the fan was occassionally on it seemed in my opinion to be running slowly , but as not my car I wasn't sure. Later on it was noticed as NOT running when it should have been which was a clue. At a certain temp it shoudl come on always and it wasn't. My advice...
  2. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    Problem solved. We missed the obvious up front. Issue was the fan. replaced today with new Dorman assembly - super simple - plug & play, and all is well. I missed that regardless of all the other components if there's no air movement through the radiator the car will overheat. Of course. It...
  3. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    Connection is a 3 contact . Pigtail right off the shroud to the left plugs in to connection. My understanding is 2 speed. Hotwiring got it to run once for about 10 seconds . Couldn’t get it to run again . Just got home with replacement. Will be EZ install. Will advise later tonight!
  4. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    @moparado - thanks much. This Jeep has efan only which I’ve seen as correct for 04 I believe. Now it’s not coming on at all so that’s next. It was engaging earlier so I’m not convinced that’s the entire issue but when not engaging at all it has to be swapped. Will take the shroud out again and...
  5. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    Thanks @moparado . Pressure test makes sense. Yes also thought that the stop leak may have clogged a passage or two as this only occurred a week after changing the T stat . Agree 100% that stuff shoudln't be used and tried to warn them not to buy it when I learned it was in the radiator. If...
  6. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    the 2004 didn't have mechanical fan only electric . If I let it idle without the cap on coolant starts to come out of the filler neck after about a minute - is that normal?
  7. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    My daughters 2004 Grand Cherokee (4.0) a week ago Friday threw a code - said Thermostat, so I replaced the thermostat, OEM 195, easy job. Drives for a week all is fine. Last Friday it overheats - she has it towed to my house. No leaks, system is full, pressurized, all looks fine. When she bought...
  8. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    My daughters 2004 Grand Cherokee (4.0) a week ago Friday threw a code - said Thermostat, so I replaced the thermostat, OEM 195, easy job. Drives for a week all is fine. Last Friday it overheats - she has it towed to my house. No leaks, system is full, pressurized, all looks fine. When she bought...
  9. Complete cooling system replaced and still overheating - 04 Gr Cherokee SE 4.0

    The Garage
    My daughters 2004 Grand Cherokee (4.0) a week ago Friday threw a code - said Thermostat, so I replaced the thermostat, OEM 195, easy job. Drives for a week all is fine. Last Friday it overheats - she has it towed to my house. No leaks, system is full, pressurized, all looks fine. When she bought...
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