No Forth Gear

[cohn]

Has anyone had this problem? The car drive perfectly in first second and third but woun't select forth.
Even when you bypass the overdrive cancel soleniod it won't select forth.
It has a BMS full manual valve body in it which is selecting 123 fine but the box isn't letting it tinto forth. Checked overdrive servo/band adjustment and overdrive cancel soleniod seals. all seems to be ok.
Any info would be great.

Thankyou.
Colin.

 

[harry3]

theres a temperature switch that locks out 4th until everything is warmed up which can take 20 minutes or more on a cold morning

 

[rb26dett]

Do you have an electric switch hooked up to select o/d?

 

[cohn]

It doesn't use the temperature sensor anymore because it has a full manual valve body installed and yes there is a switch hooked up for the overdrive cancel solenoid. i have checked the wiring and seals on the solenoid, and also adjusted the overdrive band. It must be internal so the box has to come back out to fix now.

 

[commsirac]

Has anyone had this problem? The car drive perfectly in first second and third but woun't select forth.
Even when you bypass the overdrive cancel soleniod it won't select forth.
It has a BMS full manual valve body in it which is selecting 123 fine but the box isn't letting it tinto forth. Checked overdrive servo/band adjustment and overdrive cancel soleniod seals. all seems to be ok.
Any info would be great.

Thankyou.
Colin.

But aren't 1st, 2nd and 3rd all forth gears?:whistling