overheating
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overheating
2003 durango 4.7 slt
I had a friend replace both head gaskets, the heads did not look warped,he ran a machinists square over them,I went on a 200 mile trip and it overheated at 200 miles,when I checked it out the overflow resevoir was completely full of coolant,I drained it down to proper level,refilled at system at cap and it won't quit bubbling with the cap off. I ran it for 20 minutes and runs fine but still blowing bubbles,it does not overheat till it fills the resevoir back up and then the coolant level is down in the motor.Could it be a cracked head that we did not see , any help would be appreciated.
I had a friend replace both head gaskets, the heads did not look warped,he ran a machinists square over them,I went on a 200 mile trip and it overheated at 200 miles,when I checked it out the overflow resevoir was completely full of coolant,I drained it down to proper level,refilled at system at cap and it won't quit bubbling with the cap off. I ran it for 20 minutes and runs fine but still blowing bubbles,it does not overheat till it fills the resevoir back up and then the coolant level is down in the motor.Could it be a cracked head that we did not see , any help would be appreciated.
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when you say burp the system ,do you mean leaving the radiator cap off to get the air out?
The head gaskets were put on by matching the old ones to new ones to make sure they were right, yes the cooling fan does come on after heating up
The head gaskets were put on by matching the old ones to new ones to make sure they were right, yes the cooling fan does come on after heating up
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From: Riverton, UT
No that only allows some air out, not all that is why there is a bleed screw on the side of the cap housing. Download the manual from the DIY section sticky at the top of this section and follow the instructions.
From the sound of it you should have had the heads checked at a shop, I know about the old school ways of doing it but your talking about an aluminum head and a iron motor. They don't overheat well at all and I would assume your head is warped. Sounds like a bad seal to the block and the piston could be pushing compression into the cylinder. There is a test you can have done to verify carbon monoxide in the cooling system.
From the sound of it you should have had the heads checked at a shop, I know about the old school ways of doing it but your talking about an aluminum head and a iron motor. They don't overheat well at all and I would assume your head is warped. Sounds like a bad seal to the block and the piston could be pushing compression into the cylinder. There is a test you can have done to verify carbon monoxide in the cooling system.