LT1-LT4 Modifications 1993-97 Gen II Small Block V8

93 LT1 Overheating

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Old Mar 31, 2013 | 05:24 PM
  #1  
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Default 93 LT1 Overheating

My buddy's kid has a 93 LT1 that needed a water pump so he replaced the water pump and thermostat and still has over heating problems. He told me he pulled the radiator cap and can see the water flowing. It is overheating in town and on the freeway. Car has around 160,000 miles on it. I don't know if he's had the radiator flushed. Any suggestions?
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Old Mar 31, 2013 | 08:12 PM
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You've got to make sure you open the bleeder screws with the car running. When I did mine, I let it idle and opened up both screws and as the car warms up it starts spitting coolant out. Make sure there's no air coming out and then close them up and top off the overflow. That should get it right.
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Old Mar 31, 2013 | 10:00 PM
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^ This.

Keep them open till you hear no more hissing sputtering and its just coolant coming out. Close them up.
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Old Apr 21, 2013 | 04:15 PM
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were is this bleeder screw i'm having the same problem
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Old Apr 21, 2013 | 04:24 PM
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should be right on top before the therm, it has to be bled off though, if i remember there are 2 bleeders, upper and lower
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Old Apr 22, 2013 | 08:18 AM
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the 2nd is on one of the heater core hoses, do that one first and then the other one.
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