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just had my 1995 4l60e tranny rebuilt after it blew up. my tranny guy told me to flush my cooler for any debris or anything like that but I dont have an aftermarket cooler so im not sure if hes referring to my stock cooler in the radiator or what.
hopefully this makes sense to someone.
you should always flush the cooler and the lines after a tranny takes a dump ( or even after a rebuild ) .....dont want any trash left in the system to muck up your new tranny
Use 2 cans of that stuff at least. Flush both directions.
Then use an air compressor and rubber tip to blow the lines out. Instructions will say to turn can upside down to blow lines out...that doesn't work worth a darn in my opinion.
I'd bypass the stock cooler and run an aftermarket one. Then you can just flush the lines with brake clean and no worry about what might have gotten stuck in the passages of the cooler depending how bad it let go.
I'd bypass the stock cooler and run an aftermarket one. Then you can just flush the lines with brake clean and no worry about what might have gotten stuck in the passages of the cooler depending how bad it let go.
Did you even look to see where he is from? Minnesota. You do not want to bypass the factory cooler in cold climates like that. The factory cooler can actually act as a warmer and get the trans to a more stable temperature more quickly.
Too cold is bad for a transmission.
Did you even look to see where he is from? Minnesota. You do not want to bypass the factory cooler in cold climates like that. The factory cooler can actually act as a warmer and get the trans to a more stable temperature more quickly.
Too cold is bad for a transmission.
Didn't notice at all. I know about the benefits and design of the stock cooler has in relation to getting temp up. OP could add a thermostat inline if he drives the car daily in sub freezing temps and by passes the factory one. Just making a suggestion. Also in regards to the cooler flush, check the ingredients. A Ford diesel class I was in years ago the instructor had breakdowns of a few different cooler flushes and two of them had water in the ingredients.
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flushing stock trans cooler? 
