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Old 09-11-2011, 10:41 AM   #1
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Tranny fluid is milky

yesterday my jeep started shifting really terrible. it started happening after i drove around town while it was raining and i went over a lot of big puddles. my tranny leeks a little out the input shaft seal. i checked my tranny fluid this morning and it looks like this...


Im not sure if thats water that got in making it milky?
I recently just changed fluids from 80w90 gear oil to syncromesh. i used a lot of brake cleaner to flush the tranny. ive been driving it for about 1000 miles without a problem like this.

I think its highly unlikely water got in the bellhousing through that little slot and up through my input shaft seal thats leaky? haha

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Old 09-11-2011, 10:58 AM   #2
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If I were guessing I'd say it is either water or brake clean that you didn't get drained out good, don't know why you'd put brake clean in tranny but it's your ride. I'd change fluid and drive for several miles then change again, keep doing that till the tranny fluid drains out looking like when you put it in, this is the only way to get it clean and free of what ever is in it. Make sure you have plenty of fluid to flush with.

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Old 09-11-2011, 10:59 AM   #3
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My first guess would have been water in the oil. Driving through some deep water could get it in there and make it run like crap
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Old 09-11-2011, 11:05 AM   #4
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If it was an automatic that's typical of a failed tranny cooler in the radiator. Since it's a manual (assuming since you put in gear oil) that's very strange. Never seen water leak INTO a tranny through a bad seal. I would say it's diluted from the brake cleaner. I would not recommend using any solvents like that to flush the tranny, just change out the fluid alone. I would drain the oil out again, let it drip for a good long time to get everything out and hope nothing is damaged.
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Old 09-11-2011, 11:27 AM   #5
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Well one problem is that im using a 1 inch transfer case drop and Its angled down not allowing all of the fluid will drain out. ill just have to jack up the back end and see if i can get it to drain some more out.

Does anyone know if the input shaft seal is somewhat easy to replace?? I have a tranny jack and a lot of tools but im just wondering if its easy to get too without disassembling the whole tranny? i think their its just behind the bearing retainer plate?
The previous owner got the clutch replaced 100 miles before i bought it. Either the mechanics were mentally retarded and failed to notice The leek or they installed the clutch wrong causing the leek.
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