91 liberty auto

silverback · Post by **silverback** » Sun Jul 23, 2006 10:28 pm

I have a 91 liberty gx wagon auto and the autobox for some reason wont change into 4 th gear or overdrive
i can change manualy 1,2,3
does anyone have some clues ?
the sub sits dead in the driveway as i cant go over 50klms
regards
silverback

Suby Wan Kenobi · Post by **Suby Wan Kenobi** » Sun Jul 23, 2006 11:04 pm

When you turn the ignition on does the dash light "power or ecconomy" on the lower part under the selector position flash?

silverback · Post by **silverback** » Mon Jul 24, 2006 5:01 pm

The "power and ecconomy" lights work as per norm im starting to think it might be the speed sensor . The only problem is the gregorys doesnt show me clearly where to find it

Suby Wan Kenobi · Post by **Suby Wan Kenobi** » Tue Jul 25, 2006 12:35 am

The main sensor is on the back of the dash but if it is a problem the Check engine light will be coming on and it will register as an error. If its the one at the rear of the gearbox the TCU should register it as an arror and the power light on the dash should flash.

The auto trans fluid is still red?

silverback · Post by **silverback** » Wed Jul 26, 2006 9:41 am

I went to the test mode under the dash and and pluged in the apt wires and one of the codes was a { read mode} (seven flashes and then short pause then seven flashes again )
In the {D check mode} i had (three flashes a short pause followed by three flashes again ) I dont recognise the fault area codes any clues ?