07 GS450H replacing/fixing transmission oil pump controller
#1
07 GS450H replacing/fixing transmission oil pump controller
Having an issue with a GS450H that has a P2797 code. Which says oil pump controller malfunction. I read another post that said this is a 3k part from Lexus, but it can be rebuilt. My question is, has anyone had success removing this oil pump and having it rebuilt at a machine shop? Also, do I have to drain the trans fluid to remove this unit? If so, how do you drain and refill the trans since there isn't a dipstick. Are there fill and drain plugs on the side of the transmission case.
Any advice or how to instructions would be greatly appreciated.
Thanks!
Any advice or how to instructions would be greatly appreciated.
Thanks!
#3
Driver School Candidate
There are 2 plugs, one for drain one for fill. You need to drain oil before open that pump.
For removing that pump, is easy operation, only few screws. There are 2 problems with that pump : electric motor bearings , which are inexpensive and relatively easy to replace, and/or hydraulic pump itself ( can be noisy, or cannot build enough pressure). In this case , good luck finding someone for rebuild. You can buy a used one too.
For removing that pump, is easy operation, only few screws. There are 2 problems with that pump : electric motor bearings , which are inexpensive and relatively easy to replace, and/or hydraulic pump itself ( can be noisy, or cannot build enough pressure). In this case , good luck finding someone for rebuild. You can buy a used one too.
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genji
CT 200h Model (2011-2017)
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10-02-23 12:43 PM