LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Overheating Problem

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Old Feb 1, 2005 | 01:24 PM
  #1  
TangerineTA's Avatar
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Overheating Problem

The problem with my car is that is started over heating. Why? Who know's? I opened up the bleeder valves and a grip of air came out. I did this like 10 times. Checked all the hoses to make sure none where lose. But still pulling in air from some where. Anyone know what the problem could be..... Any help would be apriciated.
Old Feb 1, 2005 | 01:27 PM
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Re: Overheating Problem

Originally Posted by TangerineTA
The problem with my car is that is started over heating. Why? Who know's? I opened up the bleeder valves and a grip of air came out. I did this like 10 times. Checked all the hoses to make sure none where lose. But still pulling in air from some where. Anyone know what the problem could be..... Any help would be apriciated.
Waterpump not turning? Thermostat stuck closed? System need flushed?

Are you bleeding correctly? With the motor off, and the engine COOL, open the bleeder ontop of the thermostat housing, fill radiator at the CAP, not the overflow. Wait till fluid is consistantly coming out of the bleeder screw. Tighten the screw down. Now start the car, radiator cap still off. Wait till engine comes to about mid way on your gauge (200*ish) check coolant level, fill radiator till full again. Now the tricky part. Put the cap back on. Drive around for a few miles, get back home, SHUT OFF THE ENGINE. release the 2nd bleeder screw. The pressure will push the air out of the bleeder. If you leave the engine running, it will draw air into your heater hoses.

Last edited by Bawls; Feb 1, 2005 at 01:30 PM.
Old Feb 1, 2005 | 03:17 PM
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Re: Overheating Problem

I can hears the fans coming on. Just got back from buying a thermostat fixing to put it on. See what happens. Everything is running good water pump, Fans, And I flush everthing out about 3 months ago. Hopefully it is just the thermostat.
Old Feb 1, 2005 | 04:46 PM
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Re: Overheating Problem

Hopefully you got the right thermostat. http://shbox.com/1/tstat.jpg
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