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  1. #1 Re: 2001 Grand Prix GT: possible multiple issues... 
    Donating Users Liquifire's Avatar
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    the only way to see if the radiator is leaking is to get it up to temp fully with the coolant level all the way up...you will see the leak if it is leaking, or at least evidence of the leak. It is normal for the exhaust to have steam come out of it for a little bit on start up. It is condensation built up in the exhaust which heats up and turns to steam. If it continues to steam while up to temp or running during the day or it smells sweet, then that is a problem. I still dont understand how you could have a radiator that went bad in the same spot twice. Are you positive there was a leak in both of them in the same area? I dont know how much the LIM replacement would help. Do you have any coolant which puddles on the intake on top of the motor while it is running? Does your oil look normal and is at proper levels? I would be more concerned about the radiator and what is damaging it. Please answer these questions and we will go from there.
    98 GTP Coupe- 180* T-stat, GMPP Front Sway Bar, Dual Aeroforce Interceptor's, TDC FWI, TDC Taylor 10.4's, ZZP SS Plog, ZZP 3" SS catted DP, ZZP MPS W/3.4, AL104's gapped @.055, 3800Perf. PCM
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  2. #2 Re: 2001 Grand Prix GT: possible multiple issues... 
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    Quote Originally Posted by Liquifire View Post
    the only way to see if the radiator is leaking is to get it up to temp fully with the coolant level all the way up...you will see the leak if it is leaking, or at least evidence of the leak. It is normal for the exhaust to have steam come out of it for a little bit on start up. It is condensation built up in the exhaust which heats up and turns to steam. If it continues to steam while up to temp or running during the day or it smells sweet, then that is a problem. I still dont understand how you could have a radiator that went bad in the same spot twice. Are you positive there was a leak in both of them in the same area? I dont know how much the LIM replacement would help. Do you have any coolant which puddles on the intake on top of the motor while it is running? Does your oil look normal and is at proper levels? I would be more concerned about the radiator and what is damaging it. Please answer these questions and we will go from there.
    Ok...the oil from the dipstick looked fine...no water droplets, no coffee w/creamer looking stuff...I have not noticed coolant puddling on top of the intake, but it;s worth looking at. I am positive that the crack/leak is in the same area on the driver's side of the car.
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