Compression Ignition Addict
Join Date: Oct 2010
Location: Monroe GA
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Auto trans rpms drop when put in reverse
A little background info, I just bought this 02, it supposedly has a new trans with some extra things done to it. The trans was working fine, it had an aftermarket trans cooler mounted but i thought it looked bad with the factory one sitting there with the hoses hanging off.
I removed the aftermarket cooler and reconnectrd the factory one. I also mounted and connected an in line filter, then added 2 qts bc it looked low.
The bad part was the fluid that drained from the lines when I was working. It was gross, black looking.
Before I did any work the other night my od light came on for no reason a couple times. This morning when I went to back in my spot I shifted to reverse and the rpms dropped to about 400 and then went back to normal. I shifted it back and fourth a couple times and it dropped every time in reverse. My od light also flashed for a minute. I also noticed that the filter and all the lines were cold but the pan was hot.
So far it has not given me any problem on the road hopefully I'm not ginxing myself.
What could the problem be? I have read about the bypass valve but would that cause the reverse and od light issues? The trans temp guage reads normal.
Trans is supposed to have 30k on it so I hope theres no serious problem.
It took forever to type this on my cell phone.
Last edited by Shadowfax; 11-15-2010 at 11:03 AM.