Originally Posted By RapidRobert
I'd get it hot & pump it up to 15 & let it set overnight. If it ain't leaking externally then it has to be leaking inside the eng


I pumped it up hot just now. Pressure drops as it cools, which seems normal. If I pump it up cold, pressure holds for a long time. I will pump it up and leave overnight.

Last edited by Dodgevity; 10/27/15 10:10 PM.
2003 Dodge Dakota Quad Cab SLT
4.7L V8, Automatic (545RFE), RWD
310K mi