Possible Transmission problem.... - TCCoA Forums
 
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post #1 of 4 (permalink) Old 10-25-2006, 05:45 AM Thread Starter
 
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Question Possible Transmission problem....

I just bought a 91 Mercury Cougar with the 3.8L and the AOD. I have a few questions here as I am a nooob and all. My trans will shift into every gear with no slipping/hesitation except OD. When it goes to engage OD it will have a slip to it, but no other gear. The fluid looks like motor oil and I took it to a tranny shop to have it looked at. He said it wasn't burnt, it was just dirty. So what I am wondering is, would draining the transmission and refilling it and putting in a new filter fix the problem, or am I looking at getting a transmission? If that's the case, then what I would like to know is what vehicles with the AOD can I get the trans from? From what I hear, the 5.0 and the 3.8 share the same bolt pattern, so can I pull a trans from a 5.0 and install it in my car? One last thing I was wondering is what years can I pull the AOD from or does it matter? I have a 87 Lincoln Town Car that has the 5.0 and I know I can't use that one because of the tail being a different size, but I have a feeling that I am going to need a new trans if this doesn't work. Please let me know what will work. I have heard that the 5.0 transmission is a stronger one so I would think I could just drop one of those in vs the 3.8 trans. Any advice would be greatly useful.
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post #2 of 4 (permalink) Old 10-25-2006, 04:08 PM Thread Starter
 
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post #3 of 4 (permalink) Old 10-25-2006, 05:05 PM
 
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I would change the fluid in the tranny. It's not real expensive, and you might not even need a new tranny. Fluid should not be any dark color. It should be red, obviously. Dirty or burnt, doesn't matter, it's still bad. Good luck with it.
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post #4 of 4 (permalink) Old 10-25-2006, 07:23 PM Thread Starter
 
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I have been told by a lot of people to not change it because it can cause the transmission to fail. I am not sure which direction I should go and I can't have it die out on me quite yet. If its going to, then I want to have a new tranny standing by. What would happen if I change the fluid in all cases?
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