RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
Stant is the only one to buy! No, quick relaese caps either.
Start with the cheap and easy stuff. Replace the radiator cap again with a genuine Jeep or STANT 16 lbs cap. You could have received a bad one.
Stant is the only one to buy! No, quick relaese caps either.
Stant is now owned by MotoRad, and the Stant 10231 has been discontinued. The specified replacement is the MotoRad T16V.
Thank you for the clarification. Back in december I ordered an OEM rad cap expecting Stant and the Motorad cap showed up in the Mopar box
Did ever do a sniff etr test it sounds like a cracked head.
Not specifically. There are no signs of a cracked head, the compression is good, the oil pressure is good, there is no visible coolant in the oil, it doesn't seem to be loosing any coolant and it is not blowing any white smoke, I would think that the head was ok.
You say that a coolant system pressure test fails, but the engine is not loosing coolant during driving. Both can't be true. Are you sure the pressure tester is not defective? And keep in mind that hot water evaporates. A cracked water passageway into the valve space may not result in water in the oil.
A crack into the chamber will cause all the symptoms you describe with no noticeable coolant loss
It is my buddy's pressure tester, he is a mechanic and uses it all the time. I guess that it is possible it could be broken but it looks like it is pretty new and in good condition. He is not the type to not know if something is broken.
How would I know if there is a cracked passageway? Is there a test?
I got the test kit to see if there is any exhaust gas in the coolant and there is NONE. I did the test three times, twice from the radiator and once from the radiator overflow tank. I pulled vacuum from the line running down the passenger side engine bay. Plenty of flow and bubbles in the test chamber but never changed from blue. I have been driving it all week in this hot NY weather with the AC (blowing clod) and the temp has always been perfect and it did not boil over once. I still have no freaking idea what could cause this sporadically. With help from you all and two different mechanic friends no one seems to have any real idea what the problem is.
Have you done a dye check, you may have a pump starting to fail causing cavitation.