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Old 18th January 2022, 14:56   #2
clf
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MG ZT CDTi

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Originally Posted by Mr Toad View Post
Hi all, the Jatco auto box in my MG ZTT will not change into 4th or 5th gears . Other than that it operates perfectly satisfactorily. I have changed the fluid using the correct grade and ensured that it is at the correct level.



From my research it appears that there may be problem with the solenoids. There are nine altogether of which three appear to deal with the gear shift but which one I am not so sure. I was thinking of a scanning check and a multimeter check but those checks may be inconclusive. Does anyone know which solenoid would be responsible for this problem?



Thanks

Martin
There is a pin out diagram with the appropriate values. Use the search bar (I cannot find it to share), and enter brake duty solenoid. This should yield a number of posts, but you will have to wade through them to find the appropriate diagram, unless someone can post it up.

Also search youtube for Jatco 506 solenoid. There are a lot of videos regarding the gearbox and repair (mainly us, but they are still relevant)

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