[fredjacksonsan]

Holy moly. I would take that thing back to the dealer as quickly as you can, then find a different dealer. In my experience, used dealer repairs aren't all that reliable.

Having said that, it sounds like there are multiple problems:

1) Cooling system. Fan(s) not working. Overheated - likely due to fan not coming on. Likely a relay or switch for the fans to come on. Might also be a problem with the radiator flow, thermostat and/or water pump, but hard to tell from your description.

2) Head gasket? As a result of the overheat, the vehicle may need a new head gasket. With a loss of power that's a concern I would have. Any other symptoms, like white smoke out of the tailpipe, or coolant/oil leaking from under the head?

3) Oil pressure low. Might be part of (4) below, or might not. It could be just the oil pressure gauge, or you might actually have low oil pressure. How low is low? My 4.0 idles at about 40 (halfway on the gauge) and runs on the highway at 55psi.

4) Gauges. You have several indications that there are multiple problems.

5) Intermittent electrical problem causing lights on and off.


With all the things wrong with it, I wouldn't be surprised if it had been flooded. Time for a different vehicle IMHO.