I have read on seveal sources that the centrifugal govenor/ voltage regulator in the tail section of the ZF 4 HP 22 autotrans can be replaced, due to slow up shifting from 1st to 2nd gear (when the weather is cold primarily) and that this will extend the life of the trans.
Seems that it removes a lot of the debris that can cause tranny failure and improves the shifting remarkably. The voltage regulator sends speed readings to time the shift points and it's all hydrolic and the function of the trans depends on the fluid pressure moving throught the valves.
Anyone know if this IS the correct part. Ive found ONE in the entire US and apparently they are hard to locate/obtain. I need to know if anyone has any experience with this. I wont be DIYing it, my Indy mech will do the job.
Thanks for any info on this...
Seems that it removes a lot of the debris that can cause tranny failure and improves the shifting remarkably. The voltage regulator sends speed readings to time the shift points and it's all hydrolic and the function of the trans depends on the fluid pressure moving throught the valves.
Anyone know if this IS the correct part. Ive found ONE in the entire US and apparently they are hard to locate/obtain. I need to know if anyone has any experience with this. I wont be DIYing it, my Indy mech will do the job.
Thanks for any info on this...
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