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

Cracked Radiator ???

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Old Apr 3, 2003 | 07:21 PM
  #1  
AENIMA95z28's Avatar
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From: Oviedo
Cracked Radiator ???

The day after i run my car at the track my Low Coolant light comes on, i think nothing of it and add water to the radiator and overflow resevoir. Later that day the coolant light comes back on, i open up the radiator and its halfway full again, I fill it back up, the coolant light goes off, but then when i backed the car out i notice a line of coolant leading up to my car, ending in a big puddle. The coolant was dripping down into the fans and onto the lines making a puddle. The dripping eventually stops and the coolant light comes back on. It looked like the coolant was pooling up in the right radiotor fan shroud but was dripping down from the far right of the car. Any ideas would help. Im hoping its a bad hose but i think its the radiator,

How much is a knew radiator?
How hard is it to install a radiator (average time in hours)?

Please help
Old Apr 3, 2003 | 07:39 PM
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TTT Help Me
Old Apr 3, 2003 | 08:07 PM
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A new radiator is under $200 dealer wholesale. P/n 52466004.
A person could probably install one in an hour or two taking his time.
Old Apr 3, 2003 | 09:25 PM
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Ok shoebox, need ur advice here. This is the wierd part, I opened the radiator while the car was cold, the coolant was about half way down to the bottom of the radiator, pretty low (its supposed to be at the neck of the radiator cap right ?). I start the car and begin filling the radiator with water until it is full. I let the car bleed off some are (bubling up through the radiator fill hole) and coolant slowly over flows. I let this happen till all the bubbles are gone (about 3 or 4 min) then i put the cap back on back the car out, thats when the car was leaking, im not sure if just allot of water pulled up while i blead and rinced off the radiator, and that was what was leaking, or if the radiator itself was. Now heres what i dont understand, after about 10 min of slow leaking it eventually stops, i drive the car around the neighboorhood and not a drip, but the coolant light came back on. About 2 hours later i go back out to the car and check the radiator, its back down to halfway full, i start the car but this time no coolant light, the radiator eventually fills up to the top and begins to over flow as the car warms up. Im stumped, any ideas ?
Old Apr 3, 2003 | 10:49 PM
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Check it when it is cold and fill the radiator to the top if it needs it. Also fill the remote reservoir to the cold level. Cap the system and go about your business. When you get a chance do the same thing again (when cold). Keep doing this to see if the level finally stabilized. I would think 2 or 3 times would be sufficient.

If you think you have an actual leak, rent a pressure tester so you can pressurize the system when it is cold to see if it holds and look for leaks if it does not.
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