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

    Troubleshooting/Problems
    Before hot wiring the fan, did you try the AC-on test i suggested? The older generation of 4.0's had two temp sensors, one located near the water pump and the other located at the rear of the engine somewhere i believe for the temp gauge only. The later 4.0's at least with one speed fans had...
  2. Software Update Over-the-Air

    Audio/Visual/Navigation/Electronics
    JEEZ! holy smokes! All that just for correcting a previously corrupted update?
  3. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    Ok so only an efan. Depending on the Jeep some have variable speed efans controlled likely by the PCM. If your Jeep does have a variable speed efan that could complicate trouble shooting. I'd observe the efan operation from a cold start to hot idle to verify if its operating properly. See if it...
  4. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    The radiator fans on these Jeeps vary. What fan system does yours have?...... clutch/efan combo, efan(s) only, hydraulic fan, etc. Are the fan shroud(s) in good order? Burping after a complete coolant flush is important. Sounds like you probably did it right. The only thing i'll add is make...
  5. Software Update Over-the-Air

    Audio/Visual/Navigation/Electronics
    So many things can go wrong with an over the air update i'd be leery to update that way. A better optional way would be to down load an update file from a FCA website and copy the file on a thumb drive then plug it into the Uconnect system. I'd trust that method better than an over the air...
  6. '99 started running bad what's next?

    Troubleshooting/Problems
    Any CEL trouble codes yet? Rough idle on these 4.0s can be caused by a lot of things. First off the basics; new air filter, PCV valve, spark plug wires if applicable and check for vacuum leaks. On some 4.0 intake manifolds there's an unused vacuum nipple sealed with a rubber cap. It must of...
  7. Complete cooling system replacement and still overheating! 04 Gr Cherokee SE 4.0

    Troubleshooting/Problems
    First off 4.0's with mileage typically run hot especially in hot weather at idle. 210 deg. is not that unusual in hot weather especially when idling for long periods but at that temp the efan should be running. New water pump..check. New radiator..check New thermostat..check Temp sensor...
  8. '99 started running bad what's next?

    Troubleshooting/Problems
    What engine?
  9. WK2 2x4 vs 4x4

    Grand Cherokee - WK2 -
    I don't live in Florida but spent some considerable time there. When those daily Summer afternoon storms show up in the Southern part, its like the world is gonna end. Then there's flooded roads, hurricanes, etc. Plus with those storm wet roads, that hemi 4x2 might have some traction issues...
  10. 2019 Trailhawk Suspension Failure Week 1 of Ownership

    Trouble Shooting/Problems/Service
    Thanks for the followup, many 1st time posters start a thread and then never heard again. I'd hang in there and let Jeep fix whatever is going on. As you say, there's always the lemon laws as plan B if things don't work out.
  11. Transfer Case Bolt Leak

    Trouble Shooting/Problems/Service
    It could be the bolts loosened, weren't torqued per spec at the factory or don't know this for a fact but they might require a sealant which is missing or has deteriorated. At any rate that small amount of seepage should not be a problem in the short term but yeah i'd get it checked out as...
  12. what would you do?

    Trouble Shooting/Problems/Service
    I agree the situation does sound a little weird. Thinking there's more to this story. The OPer didn't say but with a 2019 Jeep with only 3.3K miles, we have to assume the transmission replacement is covered free under the bumper to bumper warranty. Only thing i can figure is that maybe the...
  13. Quadra-trac ll....Question

    Suspension/Driveline/Brakes/Wheels/Tires
    It probably means the front and rear axles are mechanically locked together in order for both axles to unconditionally rotate at the same rotational speed in order to gain maximum traction on all 4 wheels.
  14. 2004 jeep grand cherokee limited 4.7 L hydrolic fan

    The Garage
    Did you get your hydraulic fan sorted out? Far as the current P0171 issue, did you have this issue before you replaced the O2 sensors? Basically, why did you change out the O2 sensors? That code pertains to an out of spec lean fuel mixture reported by an O2 sensor(s). Other than a faulty O2...
  15. 2019 Trailhawk Suspension Failure Week 1 of Ownership

    Trouble Shooting/Problems/Service
    I hate hearing stories like this as i also have a TrailHawk. Hopefully its something simple like a loose tubing fitting. Years ago i bought a brand new '86 Dodge Daytona. The dam transmission locked up solid after a few hundred miles. Dodge replaced the tranny under warranty but i swore i was...
  16. Help with 2007 jeep grand cherokee 2007 3.6

    Troubleshooting/Problems
    The battery light coming on and a hot alternator needs to be urgently fixed. Its possible a bad internally shorted battery is putting an excessive load on the alternator lowering the system voltage enough to cause weird problems. Take the battery to an auto parts store and have them load test...
  17. GC WK Wobbles when letting off gas

    Troubleshooting/Problems Discussion
    This is a 9 year old thread, I doubt the OPer is still around but never know. Yeah it would of been great if the OPer followed up with the fix. I will say i also read the posts and i highly doubt the sway bar bushings were the root cause of the shimmy.
  18. 2004 jeep grand cherokee limited 4.7 L hydrolic fan

    The Garage
    Sorry, i have no knowledge or experience with hydraulic fans. Maybe someone else here does. The P1499 code has to do with engine overheating. There are a couple TSBs for that code: http://wjjeeps.com/tsb/tsb_wj_0700201.pdf http://wjjeeps.com/tsb/tsb_wj_0700502.pdf Maybe those TSBs will help.
  19. 2004 jeep grand cherokee limited 4.7 L hydrolic fan

    The Garage
    Do you have a diesel or foreign export Jeep? Maybe someone else here knows what you're talking about but i sure don't. There are no hydraulic lines going to a typical clutch fan which i 'think' you're referring to as a hydraulic fan. A clutch fan is self contained needing no external anything...
  20. 2004 jeep grand cherokee limited 4.7 L hydrolic fan

    The Garage
    Your post is confusing at least to me. By hydraulic fan, i think you're referring to a clutch fan? After market clutch fan replacements can be bought at any auto part stores. I upgraded my clutch fan for my XJ to a heavy duty one which i got from NAPA auto parts. Or do you want to install an...
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