Why won't my trans downshift?
Instructor
Joined: Jun 2005
Posts: 140
Likes: 0
From: Bovingdon Hertfordshire
What is the Trans ?
If it's a TH350 then it should have the cable
If it's a TH400 (mine is '74) then it's electrical and there is a small switch high up under the dash at the end of the throttle pedal linkage.
Jeremy (too)
If it's a TH350 then it should have the cable
If it's a TH400 (mine is '74) then it's electrical and there is a small switch high up under the dash at the end of the throttle pedal linkage.
Jeremy (too)
Instructor
Joined: Dec 2004
Posts: 236
Likes: 0
From: Clearwater Florida
Those tubo 400 kickdown switches are supposed to be adjustable.
Push the plunger all the way to rgw wide opwn throttle position, then all the way back. It it supposed to active the kickdown switch the next time the the plunder is pushed to the wide open.
I have heard of putting a piece of rubber hose over the plunger so the throttle activates the plunnger before it reaches the wide open position.
Push the plunger all the way to rgw wide opwn throttle position, then all the way back. It it supposed to active the kickdown switch the next time the the plunder is pushed to the wide open.
I have heard of putting a piece of rubber hose over the plunger so the throttle activates the plunnger before it reaches the wide open position.
Instructor
Joined: Jun 2005
Posts: 140
Likes: 0
From: Bovingdon Hertfordshire
J,
If you've got Carpet issues get someone to stand on the throttle and take a look down the carb. (push the secondary air flap open)
Check that both the primaries and secondaries are opening fully.
Use a torch if needed (do it with the engine off
)
If things aren't opening properly (don't cut your new carpet away)
Get hold of the pedal and pull it away from the floor (gently but firmly) you can bend this with your hands.
With regard to the switch push it up from underneath to reset it (or flip it with a thumb nail) when it's used next it should self set.
If the switch is worn a BUBBA fix is to enlarge the switch arm with a bit of pipe so that it operates on a different part of the slide. (I say BUBBA - I can't find a new one anywhere - so BUBBAs can't be choosers)
J.
If you've got Carpet issues get someone to stand on the throttle and take a look down the carb. (push the secondary air flap open)
Check that both the primaries and secondaries are opening fully.
Use a torch if needed (do it with the engine off
)If things aren't opening properly (don't cut your new carpet away)
Get hold of the pedal and pull it away from the floor (gently but firmly) you can bend this with your hands.
With regard to the switch push it up from underneath to reset it (or flip it with a thumb nail) when it's used next it should self set.
If the switch is worn a BUBBA fix is to enlarge the switch arm with a bit of pipe so that it operates on a different part of the slide. (I say BUBBA - I can't find a new one anywhere - so BUBBAs can't be choosers)
J.
