OH NO! Leaking transmission fluid? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-06-2005, 05:14 PM   #1
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Default OH NO! Leaking transmission fluid?

I think my bonne is leaking transmission fluid now. I just noticed a huge puddle in the driveway last night when I was moving my car forward. Today when I started it, I could see lots of fluid leaking from a hose that looks like it goes into some part of the radiator. Im not really sure if its oil or trans fluid. My driveway was wet, and the liquid did not mix with the water, but it didnt do that rainbow thing that oil does. The leak is coming from the drivers side.

UPDATE: The line goes into the radiato (either the bottom or top, not sure) then comes out (either the bottom or top, not sure). So its either coolant that is mixing oil (due to another probably expensive problem) or transmission fluid, if that even goes into the radiator.
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Old 12-06-2005, 05:27 PM   #2
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If the hose is going into your radiator and it is not coolant, then it is almost certainly tranny fluid. Be careful though. If you are using Dex-Cool, coolant and tranny fluid are almost the same color. Tranny fluid will be more viscous though.
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Old 12-06-2005, 05:38 PM   #3
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my coolant is blue, and is mostly brand new due to a water pump failure. Im sure the transmission fluid is old. Very old.
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Old 12-06-2005, 05:56 PM   #4
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reupdate:
There is a small crack or hole, in the metal line, right befor the final support before it goes into the rubber line. Can I just snip that section of metal out and replace it with rubber hose? Or what kind of hos should I use?
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Old 12-06-2005, 11:53 PM   #5
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You could cut that section out but the remaining metal line should be flared before installing the rubber transmission hose with clamp.
Of course your allways better off replacing the entire line.
If you don't have the flaring / bending tool check local parts stores for the availablity
of the entire line.
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Old 12-06-2005, 11:57 PM   #6
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Isnt there a recall for bonnevilles? i read that there was a recall on my 93 with a similar problem with the transmission fluid, apparently it could leak and cause a fire
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Old 12-07-2005, 12:01 AM   #7
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Quote:
Originally Posted by zepployd44
Isnt there a recall for bonnevilles? i read that there was a recall on my 93 with a similar problem with the transmission fluid, apparently it could leak and cause a fire
That recall was for 92/93 if I recall. And mine is the only one on this site so far that I know of that actually did.

http://www.bonnevilleclub.com/forum/...highlight=fire
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Old 12-07-2005, 11:15 AM   #8
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by zepployd44
Isnt there a recall for bonnevilles? i read that there was a recall on my 93 with a similar problem with the transmission fluid, apparently it could leak and cause a fire
That recall was for 92/93 if I recall. And mine is the only one on this site so far that I know of that actually did.

http://www.bonnevilleclub.com/forum/...highlight=fire
I previously reported that the tranny line leaked on both my '92 and '93. Luckily, neither car caught fire, but it sure was a mess to clean up! When the '92 leaked, the leak sprayed tranny fluid straight up, and the running engine threw the fluid all over the place.
It'* a good thing that you noticed the leak before serious damage occurred or the engine caught fire.
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Old 12-07-2005, 11:25 AM   #9
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My engine DID catch fire. I put it out before the FD got there.
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Old 12-07-2005, 01:53 PM   #10
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Quote:
Originally Posted by willwren

That recall was for 92/93 if I recall.
Bill, I replaced two of the lines on my 93 a couple of years ago, and 1 this summer. Do you think I will be able to get reimbursed from Pontiac for the part cost (they were bought at the dealer)? What would be the procedure?

Thanks.
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