Cool deal, no worries then

 

came home today and there is my converter and 4th billlet servo maybe do the install on monday when i get back from vegas !!!!

 

got the stall and sonnex 4th gear sevo in truck runs great except i have no 4th gear . guees the install of the servo was wrong hope to get it resolved tomorrow .

 

would a tune prevent 4th gear from working ? can it be accidently disabled ?

 

Not by accident I wouldn't believe....There are several shift tables, but I don't think it'd be accidentally done.

 

ok cause i got my stall and sonnex 4th servo put in at a shop and got it back the first day and no 4th so i took it back and just picked it up and agin no 4th . just hits 3rd and then i feel the clutch lock up but no 4th guess i will have to take it apart my self and see whats up ? I dont feel like takin it back cause they obviously are clueless at this point . then the shop says they dont recomend the sonnex 4th servos . lol

 

Are you sure its not shifting and locking up at the same time? Mine does this a very rare times so I have to fix it this weekend. I think a cut O-ring on the servos could cause no fourth.

 

I personally think they boogered up the install as mentioned above, cut ring.

 

can i get new seals locally like the oem seals or do they need to be for the sonnex servo ? i am hopeing its just the o ring and no its not shifting and locking at the same time cause on the freeway i am turnning 3000 rpm at 70 in 3rd and when i put it in (D) the rpm does not drop it stays the same when it used to be at like 2100rpm .

 

Yea, its definately no 4th gear. I dunno if Sonnax uses stock O-rings.