Yeah... I've never had any problems with it when it's hot out before so it's not the heat.. Good luck.. Let me know if you have some progress with yours... I guess I'm gonna take a look at the water pump next and go from their...

 

Changed the water pump and still no luck... Not sure at this point

 

Test that cap and replace it if it wont hold the pressure rating. Only a few bucks for a new one. One of the most overlooked components of the cooling system.

 

Thanks, it has a new cap, t stat, water pump and flushed the system... And the fan doesn't slow down if you touch it with something when running...

 

I got so curious I found this for you.

http://www.arrowheadradiator.com/ove..._and_cures.htm

Check every one of those carefully, if nothing cures it maybe too much friction due to low oil pressure?
I don't know if you have an electric fan (my truck does not) but maybe adding a universal one (they are pretty cheap) and setting it to run all the time when the engine is on might cure your problem if all else fails.
Fortunately I have never had any vehicle overheat on me that was not something simple like a thermostat or water pump. Guess I am just lucky.
C'mon now, make that problem your you know what.

 

Hey I really appreciate the help... Lol yeah I'll
make it my.... I'm down to it's either the fan clutch or the trans cooler in the radiator is clogged....

 

its the fan clutch , i just had to change mine, it overheated pullin or sittin at a redlight , but run at normal temp down the road , cost $60 at autozone and takes 10 minutes to put on..........

 

Thanks! I changed the fan clutch and it seemed the be fine even pulling then later on I was sitting in the drive threw with the ac on and the temp was steadily rising above normal temp...

 

Is your upper rad hose always squishy like you dont have pressure on the system?if so there is air in system.And wash out the cooling fins on radiator.

 

Good job dude, I knew you would make it your .....
If not I was going to suggest you put a large cooler in the bed, and run some copper tubing through ice in the cooler, run the coolant through the copper tubes in the ice chilling it, and then pump the chilled coolant back to the engine.
Hey, it works for the mainframe supercomputer at work. Of course it uses a gigantic chiller system but it wouldn't fit in your truck because it is bigger than my house, hence the ice instead.