View Full Version : 2002 Forester transmission/differential problem
06-08-2010, 04:25 PM
I have a 4 cylinder 2002 Forester with an automatic transmission. It started making a chattering sound while driving. The noise corresponds with the speed you are going. It got worse and we had it towed to a mechanic. He says there is a pinion gear in the differential that needs to be replaced and recommends rebuilding the transmission for $1700. The car has 110,000 miles on it and has not had any problems until now. This seems early for needing a new tranny and I am checking for your opinions. Thanks.
06-08-2010, 08:06 PM
I forgot to mention that I checked the tranny fluid. It looked good (clear and at proper level). I did not check the differential oil. I bought the car with 70,000 miles and have never checked the differential oil. :o
06-10-2010, 05:46 PM
Update: A friend referred me to a transmission shop. They said it is very unlikely that the transmission would need a rebuild. They said it is pretty common for the differential to fail on these cars. The differential repair will cost me $1000. They advised that the input piston lip seal tends to fail on these cars and he would replace it while he is in there for $75. I am going to have them do the work.
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