2005 5.9 Cummins Cooling Issues

[Smurf]

I have a 2005 5.9 Cummins with 101K miles. 2 Weeks ago the original water pump started to leak out the weep hole. Decided to be a cheap ass and put an Orileys water pump on it. After that anytime I go over 70-75 mph it starts to climb in temp - prob 215-230 at its worst. Talked to a diesel freak and he said put a Dodge pump on it bc the aftermarkets cavitate at higher rpms. Ok, replaced pump again w factory $185 water pump.......still having same problems. Havent found any specific info on bleeding system, filling coolant proceedure, etc....

Any info or personal experience with this issue is appreciated - Thanks

[Cooter]

thermostat or radiator

pretty rare for them to have cooling issues

[Pooter]

Shouldnt have any air trapped in the system, they purge by themselves pretty much, you could try getting the nose up in the air, leave the cap off and start/fill when it gets up to temp and the t-stat opens and level drops, should purge the air itself...

["MrEd"]

Before you keep throwing money at it,check to see if you can feel a cold spot on the radiator.
If you feel a cold spot anywhere on the radiator you need a new radiator.

[greenbullitt]

I have a 2005 5.9 Cummins with 101K miles. 2 Weeks ago the original water pump started to leak out the weep hole. Decided to be a cheap ass and put an Orileys water pump on it. After that anytime I go over 70-75 mph it starts to climb in temp - prob 215-230 at its worst. Talked to a diesel freak and he said put a Dodge pump on it bc the aftermarkets cavitate at higher rpms. Ok, replaced pump again w factory $185 water pump.......still having same problems. Havent found any specific info on bleeding system, filling coolant proceedure, etc....

Any info or personal experience with this issue is appreciated - Thanks

ive never had an a/m one cause issues. rad or tstat, possibly air

[Mysticcobrakilla]

thermostat or radiator

pretty rare for them to have cooling issues

This.


Put a cummins oe thermostat in it and be done with it.