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car overheating

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Old 08-11-2006, 07:13 PM
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Originally Posted by Quickin
It ain't gonna be the cap, the factory cap is fine unless you actually see water squirting from the cap itself. If it holds the water its perfect.

Did you go through that whole list of things yet?

Also, take your A/C belt off and run around and see if it gets hot. Rule that and the pulleys out. Also, take the main belt off and make sure all accessories and pulleys spin freely. Long shot, but check anyway.

.
I checked everyyhiing you told me to and it all checks out. im really baffled.

Old 08-12-2006, 10:20 PM
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Did you flush the radiator out? It might very well be the radiator at this point I'm all out of things for you to try. Im not sure how it went out but I guess it's possible. You can try having the system flushed by a radiator job and see if that will do it.
Old 08-12-2006, 10:32 PM
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if the plastic shroud on the bottom is broken or bent bad and isnt pushing the air to the radiator your car will over heat easy. the shroud is a importent part in the cooling system
Old 08-13-2006, 09:24 PM
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k the plastic shroud under the car is fine.. i did a rad flush today and the problem is still there. i think im gonna try and change teh coolant temp sensor tomorw.
Old 08-14-2006, 01:40 PM
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Maybe air trapped in the system? I had that happen to my Buick before.
Old 08-14-2006, 03:42 PM
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im gonna change the coolant temp sensor and see how that helps.
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Old 08-16-2006, 04:24 PM
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k well i flushed the system real good today. i put a t-fitting in one of the heater hoses and did it that way.. it worked very well. i also bled the system real good. but the problem is still there.. i just programmed my fans to come on a bit earlier. lets see how that works.

any other suggesstions?
Old 01-15-2007, 02:40 PM
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i took out my waterpump lst night and the bearings and everything is fine.

you think it could be the start of a headgasket?
Old 01-15-2007, 04:08 PM
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Your radiator could possibly have several rows in the bottom that will never flow, no matter how much you flush. If you radiator cannot dissapate the proper amount of heat, your car will overheat.
A thermal heat point could tell you the different temps on the radiator itself.
just a thought!
Old 01-15-2007, 04:25 PM
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I'm gonna say temp sensor.
Old 01-15-2007, 05:55 PM
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either radiator or cap ive worked on many gm cars had a few diffrent models of gm cars doing this was either radiator or cap everytime
Old 01-15-2007, 06:24 PM
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I have heard that if the air dam under the car is damaged or missing, it will over heat. It is under the front bumper. Good luck. Let us know what it is.
Old 01-15-2007, 06:30 PM
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air dam matters only when the car is moving see if it over heats while sitting still
Old 01-16-2007, 12:45 AM
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guys if you read the thread you'll see that i did everything.
Old 01-16-2007, 09:18 AM
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It sounds like you have already checked all of the obvious stuff, so I will try to move forward; This may sound like overkill, but buy another thermostat for it and put it in. I have seen new ones that don't work, and it is cheaper to replace it again than it is to take it to a mechanic. Also, check for garbage that may have got sucked up between your radiator and condensor. I have seen cars overheat because they sucked a wal-mart bag up in there and nobody thought to check it until we pulled the radiator. If all of these efforts fail, then you are probably looking at a clogged radiator or a weak pump.




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