Car has 23,000 miles, I am new to owning a Jag.. fixed the brake system with help from this forum! Thanks.
Now the car seems to be what some call limp mode??? It won't shift out of I think it is first gear.
This has happened once before but it fixed itself somehow. LOL or so I thought. This time I was pulling the left motor fan out from under dash to check to see if that was my air problem. Upon putting it back together my air worked BUT the car would go with no shifting then it seems as if it throws itself out of gear about 30 rpm till I slow rpms back down. I have tried unplugging the battery cable (found that in many posts), I have taken wiring apart again to check to see if something got pulled when I was cabling it back up around the steering column. ( I seem to have a lot of extra wiring someone installed a phone and cd system and the wiring is all under the steering column). I am having trouble finding the TCM so I can check it... not sure what to do next. No lights,showing.

 

You stopped one section short. The XJS section is just below this one on the Forums list.
(';')

 

The most common cause is a faulty transmission modulator or a disconnected/broken vacuum line to the modulator

Hopefully an admin will come along and move this thread

Cheers
DD

 

Has been moved.

 

Don't know if is applicable, but I had the issue with my 91. Turned out the filter was clogged. I replaced the filter and all was good.

 

Welcome to the forum Bigmo,

When you get a minute, please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

Yup, most likely the vacuum line to the modulator is disconnected. Will be on the right side of the car, look underneath and see if the line is hanging down. I've pushed mine back on in a parking lot, but I had to lie flay on the ground to reach far enough underneath to do it.

 

I jacked up car and the vacumn hose was on. I pulled the modulator is there anyway of testing that?

 

put in new modulator... no change. Any other ideas?

 

Are you sure vacuum hose connected to manifold and that it is in good condition? Also has fluid level been checked, another thought is bad governor.

 

yes i even blew air through it to make sure it was good.. fluid is good,will check on governor just seems strange it was fine till I pulled that LH motor out for the air.

 

Is this the same car that had damaged trans. pan and is it LHD or RHD?

 

by chance is neutral and reverse gone also if it is the clutch pack is hanging up which will not allow it to go in any other gear

 

Check the kick down switch that is connected to the throttle.

 

It is the same car but it was the oil pan not the transmission pan that was actually damaged. this happened once after the car was repaired but it sat for a while and it fixed itself... it is a LHD car.

 

Everything works it just won't shift out of first...R good, P good...

 

Trying to figure out the kickdown switch... how to check... doing some research on that at moment and will work on that this weekend thanks.

 

I would check the governor. You should Google turbo 400 no shift. That will help lead you in right direction