No 4th gear/overdrive

[ab56452001]

Hi , my Vt wont change into 4th , every other change is smooth and o'k' , does'nt vibrate just doesnt change , there is no slippage , what could it be ?, ta.

[IBLOWN]

Hi , my Vt wont change into 4th , every other change is smooth and o'k' , does'nt vibrate just doesnt change , there is no slippage , what could it be ?, ta.

Probably a shift solenoid. Need to be checked from under the oil pan.

[graham7773]

Faulty tps can cause this.

[IBLOWN]

Faulty tps can cause this.

A faulty TPS would more than likely make ALL the gears shift really late and really hard.

[graham7773]

more than likely but worth checking before pulling the auto sump off. Do you have any fault codes?

[])R@G()N]

How long has it been since last trans fluid change ?

[ab56452001]

Thanks for all replies , fluid looks o'k' , i know how to check error codes on my vr/vs commy's is the vt the same? , ta.

[IBLOWN]

Thanks for all replies , fluid looks o'k' , i know how to check error codes on my vr/vs commy's is the vt the same? , ta.

Yep same. Bridge pin 5&6.

[Mick1988]

Is the engine light on? If no then it's not the shift solenoid.

[showbags]

high coolant temp will stop it from shifting into 4th as well, but my bets are on the tps

[ab56452001]

Hi , just to update you all , mate said could be tps prob like someone said , but first he said lets check fuses , he found a buggered 20 amp fuse , changed it , and after that wammo , drove around locally and it seemed to change into 4th o'k' ! , this cant be possible can it ? , take it for a proper hike tommora and let u know.

[graham7773]

When you find out what caused the fuse to blow, let us know?

[ab56452001]

Hi again , went for 80 km drive expressway/hills/suburban , got no idea what make the fuse go , but runs o'k' now , ill keep you's posted .