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Old September 16th, 2010, 01:47 AM   #1
noodles
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Default Dreaded 2.7L

Ive got a 01 intrepid with the 2.7l engine. I replaced it a couple years ago when it blew up. The other day I was driving down the freeway and the temp gauge goes way up. So I stop the car, pop the hood and look things over. Coolant is everywhere and to much steam to see where its comming from. So I get it towed home.

Couple days latter I look it over for the blown hose. I could not find one. I add water and run it to see what happened and all was going good then the temp gauge spiked and steam from the hood. I only got heat in the cab when I had high RPM. I thought it was a thermostat that stuck closed, so 3.5 hours to replace it and it is still doing the same thing.

I only get steam out of the upper rad hose blead vent and at a certian point with the rad cap off the coolant will just start over flowing like a faucet.

Any suggestions on whats going on? I do not see any bubbles in the coolant when running. I have tryed bleading the air out of it numours times but all I can get is steam out of the upper rad hose. My upper rad hose is hot(190 deg ) and the lower and heater hoses are around 100.

Does this sound like a bad thermostate?
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Old September 16th, 2010, 02:18 AM   #2
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Sounds to me like a bad headgaskets. My friends Caddy with the northstar motor was doing the same thing and it was the headgaskets. BTM
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Old September 16th, 2010, 04:38 PM   #3
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x2 on headgasket failure or head crack.
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Old September 16th, 2010, 04:43 PM   #4
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defanitly head that sucks
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Old September 16th, 2010, 06:19 PM   #5
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i concur
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Old September 18th, 2010, 02:12 AM   #6
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theres a passage where the t stat goes. Check to make sure this passage is open or it will over heat before you condemn the head gasket. stick something up in there to make sure its open. of course youll have to take the tstat out to do it. I believe its the passage to the driver side head.
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Old October 7th, 2010, 12:56 PM   #7
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it ended up being a bad waterpump. all of the fins on the water pump were gone. the bearing is tight still. guess they just wanted to go for an adventure. Such a great idea to use plastic fins. Ive got pictures ill have to get uploaded
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Old October 7th, 2010, 01:02 PM   #8
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Quote:
Originally Posted by noodles View Post
it ended up being a bad waterpump. all of the fins on the water pump were gone. the bearing is tight still. guess they just wanted to go for an adventure. Such a great idea to use plastic fins. Ive got pictures ill have to get uploaded
This was going to be my guess. I think I have the same issue with a 3.0 vulcan in a ford taurus.
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