Still overheating but system holds pressure
2004 Dodge Durango Hemi 4x4
I am loosing coolant. Somewhere. Truck runs fune for a few weeks then it slowly starts getting hotter at lights etc with the A/c on and by the time my wife lets me know, its missing a gallon or two. [within a month or so]...but!
I grabbed a psi tester at autozone and the system held 25 psi for 10 minutes at operating temp. No change at all. There was a point right before the truck got to operating temp that the gauge raised from 0 to 15 psi then stopped. [indicating an internal leak if it had continued] then it stopped, no needle shaking nothing, then I pumped it to 25 psi and it held psi no problem.
All this was done with a standard PSI tester that attaches to the radiator cap neck.
We live in Florida, its 90 and 60% humidity. The truck has mostly water and no coolant at this point for this is the third time in 4 months I have had to fill it up. No idea where the fluid is going.
havent been able to use a chem tester for the head because the local store doesnt seem to have one and im not paying a shop $50-100 to do it.
I am loosing coolant. Somewhere. Truck runs fune for a few weeks then it slowly starts getting hotter at lights etc with the A/c on and by the time my wife lets me know, its missing a gallon or two. [within a month or so]...but!
I grabbed a psi tester at autozone and the system held 25 psi for 10 minutes at operating temp. No change at all. There was a point right before the truck got to operating temp that the gauge raised from 0 to 15 psi then stopped. [indicating an internal leak if it had continued] then it stopped, no needle shaking nothing, then I pumped it to 25 psi and it held psi no problem.
All this was done with a standard PSI tester that attaches to the radiator cap neck.
We live in Florida, its 90 and 60% humidity. The truck has mostly water and no coolant at this point for this is the third time in 4 months I have had to fill it up. No idea where the fluid is going.
havent been able to use a chem tester for the head because the local store doesnt seem to have one and im not paying a shop $50-100 to do it.



