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Old Sep 6, 2006 | 03:41 PM
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Default coolant problem

I just got my car back together and everything works great except, I will be driving and when I shut the car off the over flow reserve. starts overflowing with coolant. It will drain the entire radiator. I am clueless someone help!
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Old Sep 6, 2006 | 06:27 PM
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Its signs of getting ready to overheat... try the simple stuff like a new cap, etc... Or maybe the water pump but those usually leak 1st though.
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Old Sep 6, 2006 | 06:40 PM
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Ya I already put a new cap and thermostat in. I am clueless. What if the head gaskets are on wrong?
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Old Sep 6, 2006 | 06:41 PM
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Be sure you got all the air out of the system too, and the tstat is opening, fans coming on...Is it showing overheating on the gauge?
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Old Sep 6, 2006 | 06:51 PM
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Tstat is opening, fans are coming on. Only time it overheats is when fluid is low or out
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Old Sep 6, 2006 | 07:14 PM
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everyone I have talked to says that it sounds like the head gaskets. Maybe there is a coolant line being blocked and that is making the pressure build up and erupt? Either way this is all I could come up with. I know for sure it dosent need to be burped.
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Old Sep 6, 2006 | 09:17 PM
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Well, thats going to suck if its your head gaskets are on wrong.. So, T-stat is opening, I guess you can see the water pump is working as the fluid is coming around in the radiator.. correct?

Turn your heater on, just to get bubbles out of those lines too..
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Old Sep 7, 2006 | 03:43 PM
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Think it could be the coolant cross over pipes under the intake?
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Old Sep 7, 2006 | 04:25 PM
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did you reverse (mix up) the tubes that go to right under the radiator cap? thought i remembered someone with the exact same problemd did that.
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Old Sep 7, 2006 | 08:31 PM
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no there on there right.
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Old Sep 7, 2006 | 10:52 PM
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see if you can find some one that can do a chemicl test. i had some what same problem and did htis test and it shows exshust in the ratator witch mean head gasket. so im tearing my heads off this weekend to fix it
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Old Sep 8, 2006 | 03:33 PM
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Man I hope thats not the case! I talked to a GM tech today and he told me to check the coolant cross-over pipes under the intake manifold.
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Old Sep 8, 2006 | 08:50 PM
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Check and make sure you have the lines correct on the water pump. There real easy to confuse then, Fill the block befor you fill the radiator. Just take a pice of rubber hose place ut on the intake of the water pump and pour untill it stops. Then fill the radiator. That should get rid of your air pockets
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Old Sep 11, 2006 | 03:45 PM
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All the mechanics I have talked to say different things. But my buddy is a mechanic and the guys at his job say that it could be the coolant crossover pipes. What do you guys think?
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