Coolant leak!!'

[Forum02rt]

Coolant leak!! HELP

Hey guys. I drive a 2005 6.6 liter duramax lly. I had a coolant leak months back and traced it back to the water pump. Water pump and thermostat have been replaced. Everything was fine and dandy, no leaks!! A couple months later the leak was back. Replacing the water pump was a bitch and wasn't looking forward to doing that again. As I looked closer I saw that the leak was coming from this tube to the left of the thermostat. Does anyone have any answers to what this pipe would be?? It looks to be 3/4" and it almost looks as though it is going into the thermostat somehow. I tried to post a picture. I hope it worked. Any info on what this pipe is!?? I'm sure I could figure out how to replace it if I knew what the damn thing was!?! Thanks in advance, any info would be greatly appreciated!!

 

[DAVe3283]

That's one of the coolant lines that goes to the heater core and EGR cooler. They have a little rubber o-ring down in there, and they can eventually go out. Grab a new o-ring and swap it out, and that should fix your problem.

Sent from my FlashScan V2

 

[Forum02rt]

That's one of the coolant lines that goes to the heater core and EGR cooler. They have a little rubber o-ring down in there, and they can eventually go out. Grab a new o-ring and swap it out, and that should fix your problem.

Sent from my FlashScan V2

Is it an O-ring I can pick up at a napa or is it a dealer only O-ring?

 

[DAVe3283]

Is it an O-ring I can pick up at a napa or is it a dealer only O-ring?

Worth trying the NAPA. I've always got it as part of a top end gasket set, so I can't give you a definitive answer.

Sent from my FlashScan V2

 

[whytry]

Do yourself a favor get the oring from the dealer ... Here is the part number...94011605