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tranny fluid leaking into radiator?

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Old Aug 18, 2002 | 05:25 PM
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ir0cz's Avatar
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
tranny fluid leaking into radiator?

noticed the other day that the fluid in the radiator is looking red. I flushed it, then after a drive, it had some red in it again. I checked the tranny fluid and it was a little low...making me think that the tranny fluid was leaking into the coolant....anybody heard of this? the radiator is only a year old.
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Old Aug 18, 2002 | 07:30 PM
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From: Waterloo, Iowa
Car: 86 firebird with 98 firebird interi
Engine: pump gas 427sbc Dart Lil M 13.5:1
Transmission: Oldani TH400 w/ BTE 9" convertor
Axle/Gears: 31 spline Moser/full spool/4.11Rich
You don't hear about it much but it does happen, usually the tranny cooler ballon tank inside the radiator gets a small rupture and leaks the fluid into the antifreeze like you describe. Sucks that it's only a year old but you know the saying-**** Happens!
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Old Aug 18, 2002 | 07:44 PM
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
Well I guess a new radiator is in order.....know any good radiators that wont empty the bank like a Be Cool? How about a griffin?
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Old Aug 18, 2002 | 08:06 PM
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IHI
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From: Waterloo, Iowa
Car: 86 firebird with 98 firebird interi
Engine: pump gas 427sbc Dart Lil M 13.5:1
Transmission: Oldani TH400 w/ BTE 9" convertor
Axle/Gears: 31 spline Moser/full spool/4.11Rich
They're just like everything else this ones good, no this ones better, blah, blah... I've never had a Be Cool but my buddy had a Griffen in his 406 vega and it kept it cool no problem. My uncle just bought a back halved S-10 that a guy lost intrest in and he's gonna run the Be Cool when it comes to that point.
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Old Aug 18, 2002 | 09:11 PM
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From: Borden
I may be wrong here but 1) Try this : take a big clear glass, fill it with coolant, pour trany fluid in and the trany fluid should sink as it is a more heavy oil than coolant. If it does just get a sample of your engines coolant in a glass, leave it over night and than check to see if trany fluid is really in there. It should settle down and sink.
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Old Aug 18, 2002 | 09:22 PM
  #6  
ir0cz's Avatar
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
Originally posted by 86-350
I may be wrong here but 1) Try this : take a big clear glass, fill it with coolant, pour trany fluid in and the trany fluid should sink as it is a more heavy oil than coolant. If it does just get a sample of your engines coolant in a glass, leave it over night and than check to see if trany fluid is really in there. It should settle down and sink.
great idea....i'll try that...thanks
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Old Aug 18, 2002 | 09:24 PM
  #7  
ir0cz's Avatar
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
Originally posted by IHI
They're just like everything else this ones good, no this ones better, blah, blah... I've never had a Be Cool but my buddy had a Griffen in his 406 vega and it kept it cool no problem. My uncle just bought a back halved S-10 that a guy lost intrest in and he's gonna run the Be Cool when it comes to that point.
I'll probably go w/ a griffin....i've heard nothing but good things about griffin and Be Cool...but Be Cool just cost too damn much. This sucks because like I said my radiator is only a year old and it's supposed to be a pretty good one.....3 core copper.
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Old Aug 18, 2002 | 09:31 PM
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From: oklahoma
ahh I would suggest not driving your car untill you get it fixed, cause if it ends up leaking the other way then you will need a complete trans rebuild, I would still suggest doing a trans service just in case.
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Old Aug 18, 2002 | 09:37 PM
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From: Borden
When you installed your rad did you have any problems with the trany cooler lines?
or maby the line inside exploded.
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Old Aug 18, 2002 | 09:38 PM
  #10  
ir0cz's Avatar
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
Originally posted by mechanicalmehem
ahh I would suggest not driving your car untill you get it fixed, cause if it ends up leaking the other way then you will need a complete trans rebuild, I would still suggest doing a trans service just in case.
Yea i just had the tranny rebuilt so I dont wanna do that agian But yea, I've already talk to my tranny guy and they're gonna flush it out for me
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Old Aug 24, 2002 | 08:23 PM
  #11  
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From: Garland, TX, USA
Car: 1992 Camaro RS & 1992 Camaro RS
Engine: 3.1 L v6 & 305 (5.0L) v8
Transmission: 4L60 Auto
a good radiator is the one that autozone sells and www.radiatorexpress.com sells it'sl 3 row and has an AWSOME tranny cooler in it. The radiator is copper core with brass ends.
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