Bosshawg600
PDP.com FireFighter
- Joined
- Aug 3, 2006
- Messages
- 3,651
A squeal is most likely a high pressure leak in the vb. had one in a 42re develop the noise before and a vb swap cured it. Sounds logical given your problem.
Your 3rd gear problem is probably one of two places. Either the front drum is leaking pressure(likely the inner seal that should have the updated version used) or a vb problem(leaking or incorrect assembly). Vb is easier to swap and while its out you can air test the front drum.
Sent from my iPhone using Tapatalk
Would a leaking VB cause an overall loss of pressure or just in a certain port?
Have you tried driving around with a gauge connected to the accumulator port to verify the pressure and see if it drops or does anything funny when 3rd gear is manually shifted?
Hooked up a gauge to the rear-most port on the passenger side (Governor). P and R sit at 0psi, D-2-1 all sit at about 80-85psi at idle, Driving down the road it holds quite steady at 165psi. There is a little bit of movement while shifting at low speeds, but its maybe 10-15psi.
Now I did get it to go into 3rd gear once today with the gauge on and as soon as I hit lock up and OD the gauge pegged at 200psi and would stay there. Shifting from 2nd to (attempted) 3rd there is no PSI drop what so ever at any RPM.
From the looks of the reading I was getting (unless I need to check another port) I can't see an internal leak with as little PSI movement as I had.......
Could I possibly have a bad 2nd gear servo not working right and releasing the 2nd gear band????