Thank you for the peanut gallery comments. I was surprised with some of your calls in your posts and offerings here as well. So like you said your deal, your call. If you have something to add in regards to the issue I'm dealing with, I appreciate your post.
Another coolant leak thread
- Thread starter mattt
- Start date
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Well, I do like salted peanuts, so here goes. With the coolant hose tees, I am assuming you have rear heat. Check there for seepage when pressure tested.
With the pressure test results you stated, I fear the head gaskets too. There are a few chemical kits you can get at a parts store and do the instructed chemical sniff tests for exhaust gases in the coolant. The 6.0 engine is not supposed to be involved in the Castech cracked heads problems. Look at the "boss" at the front of the passenger side head and see if it says "317". That should not be in the "possible cracked head" category but could still have head gasket problems.
With the pressure test results you stated, I fear the head gaskets too. There are a few chemical kits you can get at a parts store and do the instructed chemical sniff tests for exhaust gases in the coolant. The 6.0 engine is not supposed to be involved in the Castech cracked heads problems. Look at the "boss" at the front of the passenger side head and see if it says "317". That should not be in the "possible cracked head" category but could still have head gasket problems.
Bone dry.
Donal
Full Access Member
The radiator cap should be releiving the system pressure if the head gasket is leaking and increasing the pressure in the system. Maybe you can monitor the level in the surge tank and look for bubbles.
Edit. The cap is no longer located on the radiator. The cap is now located on the surge tank and should be refered to as the "surge tank cap." The pressure relieving and vaccum breaker functions are located in the cap of the surge tank.
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These radiators generally do not have caps.
Donal
Full Access Member
Yes, I should have been more clear in my post. The pressure regulating valve, vaccum breaking valve and fill function cap have been relocated to the surge tank. I will edit the earlier post to clarify. Thanks for catching the error.
Good news and bad news. When you mentioned the coolant smell in the cab I thought that was it.
Donal
Full Access Member
Check the surge tank over flow/overpressure drain line. Look beneath the surge tank cap and see a small hose that goes down and along the front bottom of the surge tank. If the over pressure is venting, the hose should be damp or wet with coolant. That may be the source of the smell you detect occasionally.
Checked the surge tank overflow tube. Clean and dry underneath the surge tank and around the tube.
Is there anyone that has had a leaking heater core? How did you discover that it was leaking? Did it leak from anywhere?
Is there anyone that has had a leaking heater core? How did you discover that it was leaking? Did it leak from anywhere?
