Question about Oldsmobile Cutlass Supreme

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My 94 cutlass supreme has a transmission leak and I was told it was seeping into radiator. Can this be fixed?

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  • lildres31 May 05, 2010

    Ido have a leak because I'm adding trans fluid every few days. The trans has like a line that connects to radiator on the underside. Could it mix in thru that line? If so what are my options?

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2 Answers

The radiator also contains a transmission fluid cooler and they share the antifreeze solution. If the trans cooler section is leaking internally into the radiator, that would explain how the trans fluid got into your cooling system. The best thing to check the transmission tube lines for a hole and repair and/or replace the radiator.

Posted on May 05, 2010

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Hi usually if it is tranny fluid in the coolant then the chances are your going to need a new rad that is if that is where the leak is if your tranny fluid and coolant use the rad then the chances are this is where the mix up is happening

Posted on May 04, 2010

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1 Answer

How to repair the coolant level low sensor on my 94 olds cutlass supreme


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You can either replace the radiator with new or used or cut the lines and install an external cooler as is used for towing. If the cooler in the radiator is leaking, you need to flush the system to remove as much oil as possible or it will cause hoses to soften and fail. Also wise to change trans fluid as well.
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