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3.9L V6 1991 Dodge Dakota 2WD Overheating mystery


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Benn.of.trades
New User

Mar 16, 2016, 9:39 PM

Post #1 of 2 (6653 views)
3.9L V6 1991 Dodge Dakota 2WD Overheating mystery Sign In

Recently Bought a older Dakota for $250 clean title and runs well but after 20 minutes she over heats on me. I opened her up and changed the water pump as I seen it leaking a bit, figured I might be my problem. After that took her for a test drive well she still over heated on me but this time she blew out my upper radiator hose were she connects to the thermostat housing. So I replaced the hose and then I swapped the thermostat replaced it that with a 195 degree,same as old. Ran her some more Still over heating, I have no coolant loss but took a day and replaced a the head gaskets. Still over heating. No leaks in the radiator and no coolant loss.
How ever after watching her over heat last night in the garage the coolant seems to back up and poor off into the overflow rather than cycling through the engine. Any tips would be great thanks.

3.9L V6 1991 Dodge Dakota 2WD


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Mar 16, 2016, 11:23 PM

Post #2 of 2 (6599 views)
Re: 3.9L V6 1991 Dodge Dakota 2WD Overheating mystery Sign In

Please - one post for same problem is enough so took out the other.
Overheat now loss of coolant. Pressure check the thing it may still be adding exhaust gasses into cooling system, weak to lousy radiator ability so feel heat blow off of it or shut down and quickly feel for cool spots if possible come time mind from the back if A/C.
Other: All hoses on the thing in proper places? Some heater hoses are mandatory as bypass hoses must work.
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Hoses don't just blow off as said or blow out because of a problem they weren't any good to begin with if so. Radiator cap would release overpressure unless totally stuck which about can't happen.......


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