Over the weekend my radiator blew up. I have a 2004 Grand Cherokee Laredo 4.0l L6. I replaced the radiator, hoses, thermostat. I filled with coolant Ran the heater, squeezed the hoses. Thought the air was out. It runs ok while moving. Got home left it run, gauge went right to 3/4 hot. I noticed the fan does not come on.
Problem 2:
A few time sitting at a light. The check gauges came on, and the oil gauge bottomed out to zero. Put the car in neutral, and came back to normal.
Any ideas? I am by no way a mechanic!! I'm on a fixed income, so have to try anything first. If there is anyone that can help out, it would be greatly appreciated.
Don
PS. I posted some of this before. But was told to come to this forum.

 

I think your whole problem is the fan. Try hot-wiring it to an ignition-on source so it will run constantly any time the engine is running. If it stays cool that way, you'll know the problem is entirely electrical.