2004 H2 overheats.

[rkhal]

Originally Posted by rkhal

I have a 2004 H2 and I am getting overheating indications on the driver corntrol center and the heat gauge. It was fine when I drove it home and the next morning at 2am when I started for work it overheated with 5 miles of home. I have changed the thermostat, the water pump, the fan clutch and the coolant cap and it still overheats. I am desparate. Any ideas?

Okay, you aren't going to believe this. I changed the thermostat, the radiator cap, the water pump, the fan clutch and the sensor and it still overheated. I refused to believe that it could be the radiator because it came on so suddenly. No gradually becoming less efficient at cooling, just wham. I didn't believe it could be the head gasket because I had no water in the oil or in the transmission and no steam coming out of the tail pipe. So before I got serious about the heads I pulled the radiator and had it rodded out. The main part of the radiator was fine but the nipple for the small hose going to the overflow tank was plugged. (it only has a small orfice deep within.) When that was unplugged the problem went away. I drove it for over 2 hours today in 100 degree plus temperatures with the ac on and a lot of idling. Temperature was rock solid.

[Intercooled]

Thanks for sharing..good find!! I'll Keep that info in the memory banks!