Check the temperature sensors that send the signal to the temp meter.
2006-08-15 05:20:36
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answer #1
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answered by Handyman 4
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My '96 GMC (4.3L ) was over-heating in the same manner and it was a bad head gasket. I had basically replaced everything like you did and it still would overheat. Watch your temp gauge as you drive on a highway, preferably. It should go pretty close to 210 deg. and then as the thermostat opens, the temp will fall. A head gasket leak (like mine was) will force air from the exhaust into the coolant system and form a bubble at the thermostat. Since the thermostat is not surrounded by hot water anymore, it will close and the truck will overheat pretty quickly as you continue driving--the temp will hover a little above 210 deg. If you make a stop, like a toll-booth or something, the temp will shoot to the 260 deg. mark. Be prepared for a big bill if this is the problem, especially if you take the truck to a dealer.
2006-08-15 14:54:02
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answer #2
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answered by djm3452004 2
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Are you sure you put the t-stat in right side up? The spring goes in the engine... Is there a clear path for air to travel through the radiator?... With an automatic trans I have seen them cause an engine overheat when they have a bad torque converter, spray the cooler lines with a hose and see if they steam like mad...hope it's not a bad head gasket letting combustion gasses into the cooling system, look for bubbles constantly coming up in the radiator. Alot of variables here, good luck in your quest.
2006-08-15 12:24:17
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answer #3
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answered by Claira Voyant 6
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What about the radiator cap? Have you flushed the system real good? Bad temperature sensor?
2006-08-15 12:16:19
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answer #4
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answered by a kinder, gentler me 7
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It's that ugly bow-tie on the grill it blocks too much of the air from the radiator.
2006-08-15 23:42:47
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answer #5
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answered by ezachowski 6
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when you changed the radiator, the fluid that came out was most likely gm dexcool and is orange. make sure that you didnt mix the dexcool with regular coolant because it will start to solidify when mixed together. ive found this out with past friends that had newer gms.
2006-08-17 13:55:48
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answer #6
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answered by 409power 2
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When you filled it up, are you SURE you put in the Correct amount of coolant?
Too little, you will over heat
Too much, it will heat up and spill out the resevior
what makes you save you are over heating?
Temp gage rising?
Temp light coming on?
if you have only the temp light, it can be your sensor
2006-08-15 12:45:04
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answer #7
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answered by mike c 5
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Did you change the radiator cap?
2006-08-15 12:15:23
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answer #8
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answered by nicomp 4
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how about heating core
2006-08-15 14:34:54
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answer #9
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answered by Anonymous
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