2003 2500hd Overheating While Towing

DeStoriesAir · June 18, 2020

15 hours ago, txab said:

Has the fan clutch ever been replaced in the past? Check it hot also. Many youtube videos showing how. You might look into the radiator having a passage blocked at some point

I have never replaced the fan clutch or water pump. I currently am disassembling to replace both.

On a side note, I did another run after I powerwashed the radiator and other coolers. I did the same run as I did before, high AC, no trailer button engaged, still pulling the same trailer. I noticed that I initially started at the tick below 210, held there for a bit, then hit 210, and ended at the tick past 217 where it seemed to hold. This is while I was pushing it hard to make it work! It is a huge difference since the run the day before (pre-power washing)! But I am still going to replace the fan clutch and water pump.

DeStoriesAir · June 19, 2020

On 6/18/2020 at 7:29 AM, DeStoriesAir said:

I have never replaced the fan clutch or water pump. I currently am disassembling to replace both.

On a side note, I did another run after I powerwashed the radiator and other coolers. I did the same run as I did before, high AC, no trailer button engaged, still pulling the same trailer. I noticed that I initially started at the tick below 210, held there for a bit, then hit 210, and ended at the tick past 217 where it seemed to hold. This is while I was pushing it hard to make it work! It is a huge difference since the run the day before (pre-power washing)! But I am still going to replace the fan clutch and water pump.

Looking for some advanced removal ideas. I am trying to get the harmonic balancer bolt out. I have the flywheel lock in place. Front the breaker bar contraption you see in the image it is still not breaking it loose. I have snapped 3 wrenches, one being a snapon breaker bar type. Any other thoughts on how to break it loose?

Thanks