Question about 1989 Ford Mustang

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I am about to purchase a 1989 Mustang LX 5.0. The seller tells me there is an issue with the second gear synchronizer. He said someone told him if he changed the fluid in the transmission it may go away. Do you have any information about this? The car is very driveable the seller says. I haven't heard the car run yet so this all the information I can give.

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My solution would be to go look at the car in person first. I would check the transmission fluid with the car running, and in park. By doing this you can check two things at oncs. First your looking to make sure its at the appropriate level depending on temp of the car. Second your looking at the color, smell, and texture of the fluid itself. The color should be a very distinctable red, not maroon or brown it should be a fairly bright red , this would indicate that it may need serviced or is overdue. The smell of it, your just checking to make sure it doesn't smell like its burnt, that would indicate the fluid hasn't been changed in some time. The texture of it, your going to just rub it between your fingures and see if it has lubricant qualities, also check for any contaminates in the oil. Sometimes you would be amazed what just flushing a transmission and then changing the filter would do to a car.

I just did all of this to my wifes 89 mustang 5.0 with a C4AOD and it was shifting very badly before and now its alot better. Although its not completley fixed it is much more bareable with money being tight

Average trans flush -$100 - $150

transmission filter and gasket - around $20
get rubber gasket not cork

New transmission - $1000 - $2000

Hope this helps

Posted on Jun 28, 2009

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U will have to get it fixed synchronizers wont get better with fluid changes

Posted on Jun 28, 2009

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No changing the tranny fluid doesn't help i had the same prob u have to change the whole trany

Posted on Jun 28, 2009

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