xtmsports

The issue has been fixed. It turned out that it WAS the fan clutch. Engine doesn't get to 230 degrees anymore and the AC is blowing cold while idling. Thanks for all of your input/help. I hope somebody else who has a similar problem can benefit from my learning curve

I think you are onto something regarding the fan clutch. I have not heard the fan clutch "howling/spinning" on a hot day when taking off from a stand still. I have also noticed that if I am idling in one place for about 5-10 minutes, the engine temp will rise to about 210-220 degrees and continue to rise. So maybe the fan clutch needs replacing. If that a diffucult task or should I let a tech replace the fan clutch. It doesn't seem like a hard job, but I am not sure if I have the right tools. Any assistance would be great. Thanks guys. I bought a new fan clutch Friday for the 99 again. This will be the second time I replaced it. (214,000 miles now) I think the factory clutches seem to go about 70-80,000 miles based on my sample of two. The fan clutch has a 1 7/16" nut on it that threads onto the waterpump shaft. It's a standard (righthand) thread. Remember, "righty-tighty, lefty-loosey" It's been so long now, I don't recall if the upper fan schroud had to come off or not. Probably easier if it does. I read online the procedure to test a fan clutch using a rolled up newspaper to see if it can stop the fan. I tried it and the fan is very strong. The 2001 Tahoe still only has 28,000 miles on it. So I don't think it is a bad fan clutch. What else could be causing the engine temp to rise to 230 while idling for about 10 minutes and it is about 100 degrees oustide? Or is this normal? I have a 98 Expedition and when it is 100 outside and i am idling, i have never noticed the temperature rise that high before.

I think you are onto something regarding the fan clutch. I have not heard the fan clutch "howling/spinning" on a hot day when taking off from a stand still. I have also noticed that if I am idling in one place for about 5-10 minutes, the engine temp will rise to about 210-220 degrees and continue to rise. So maybe the fan clutch needs replacing. If that a diffucult task or should I let a tech replace the fan clutch. It doesn't seem like a hard job, but I am not sure if I have the right tools. Any assistance would be great. Thanks guys.

Hi Guys, I have a 2001 Chevy Tahoe with the 5.3L engine. I have an odd issue with the AC and was hoping an expert can shed some light on the problem. When the truck is driving, the AC is ice cold. However, when I am idling for a couple of minutes, the AC will start to blow warmer air. Almost as if the ac is turned off and only the blower is working. Can somebody please assist? Thanks.

When you say to remove the rear disc, do you mean remove the pads and the rotor as well?

Hi guys, I have a 2002 Chevy 2500HD with 8.1L engine. The parking brakes have not been holding the truck while parked at an angle in the driveway. Everytime I go to shift out of park, I get a loud CLUNK because the truck has been locked onto the tranny instead of the parking brakes holding the truck. I know that has got to be bad on the tranny. Anyways, I have always know that changing the brake pads to new ones usually will make the parking brakes "tight" again. But it did not work for this truck. Can somebody please assist with advice on how to tighten the parking brakes? Thanks.