2001 OB, 206K miles, replaced almost everything in the cooling system including HG. OEM T stat.
I've been battling an odd overheating problem from some time. My latest riddle has to do with the radiator cap. I've had a LOT of gurgling noise and just recently the coolant that flows into the overflow wasn't being returned to the radiator. So, I took a non-OEM rad cap, bent the tabs in some to create a "tighter" seal. Drove to and on the highway, overheated like crazy. Coolant was boiling in the overflow tank, which was completely full and over flowing. The good news is that when I parked and it cooled down the overflow was emptied back into the raditor. Today to put the new OEM cap back on, no boiling but back to a LOT of gurgling.
Is it possible that the cap I "modified" was too tight?
Some additional info... I've used a new OEM cap, non-OEM cap w/ a pressure release lever and a 2nd OEM cap. with each of them I have gurgling.
I've been battling an odd overheating problem from some time. My latest riddle has to do with the radiator cap. I've had a LOT of gurgling noise and just recently the coolant that flows into the overflow wasn't being returned to the radiator. So, I took a non-OEM rad cap, bent the tabs in some to create a "tighter" seal. Drove to and on the highway, overheated like crazy. Coolant was boiling in the overflow tank, which was completely full and over flowing. The good news is that when I parked and it cooled down the overflow was emptied back into the raditor. Today to put the new OEM cap back on, no boiling but back to a LOT of gurgling.
Is it possible that the cap I "modified" was too tight?
Some additional info... I've used a new OEM cap, non-OEM cap w/ a pressure release lever and a 2nd OEM cap. with each of them I have gurgling.