85 trans question, someone please help
Thread Starter
Racer
Joined: Jan 2007
Posts: 252
Likes: 5
From: bethlehem PA
85 trans question, someone please help
trans shifts from 1st to 3rd, then overdrive be for i reach 25mph. what is the tv cable an can u adj it. i also changed fluid filter tc solinoid an pressure switch at v/body
Burning Brakes
Joined: Apr 2004
Posts: 762
Likes: 2
From: Huntington ma
The TV cable will adjust the rpm/load point at which the transmission Pump pressure causes an upshift (or downshift, for that matter) between any two gears. It will Not do anything about the converter lockup - that is controlled by the engine ECM and the setpoints in the PROM program, based on MPH and throttle position.
You say you have changed the TC solenoid, and yet you don't know what the TV cable is?
You say you have changed the TC solenoid, and yet you don't know what the TV cable is?
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
No second gear is rare. The band and forward clutch pack are on for second. The forward clutch pack is used for 1st as well. That suggests that the forward pack is good. The band also works for 4th gear. You have 4th gear, suggesting the band is ok. The fact that it shifts at all suggests the governor is functioning. Based on all these assumptions, I suggest that you have a valvebody issue.
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
After re-rreading your post, I may have misunderstood your description.
If you are saying that it shifts quickly from first thru 4th gear, then you positively have a tv issue. Put a guage on it. You should have line pressure of approx 50 psi at idle, and approx 145 psi at wot, if my memory is correct. Consult your factory service manual to confirm my pressures.
If you are saying that it shifts quickly from first thru 4th gear, then you positively have a tv issue. Put a guage on it. You should have line pressure of approx 50 psi at idle, and approx 145 psi at wot, if my memory is correct. Consult your factory service manual to confirm my pressures.
Thread Starter
Racer
Joined: Jan 2007
Posts: 252
Likes: 5
From: bethlehem PA
yes, there was no cable. 2 bolts an 2 wires
The TV cable will adjust the rpm/load point at which the transmission Pump pressure causes an upshift (or downshift, for that matter) between any two gears. It will Not do anything about the converter lockup - that is controlled by the engine ECM and the setpoints in the PROM program, based on MPH and throttle position.
You say you have changed the TC solenoid, and yet you don't know what the TV cable is?
You say you have changed the TC solenoid, and yet you don't know what the TV cable is?
