Hey everybody! I warmed my 1982 series 3 up, turned the fan on (auto) and switched the temp. between 65 and 85. Then, with my ear to the passenger tunnel vent, no sound of a working servo was to be heard! Also the centre vent on the dash kicks out big time cold air no matter what the temp is set to. it only subsides when i switch to defrost.

I think I am in ac mode all the time, and the servo isnt working I guess.

I have an untested servo replacement I got from everydayxj.com as well as a tested and working ac amp. Is the servo a bugger to remove and replace?

 

Not that hard....just a couple nuts, unplug the connector, and disconnect the rods. A little tight in terms of working room, though.

You'll wanna mark the rods relative to the position of the servo levers, though. And, when you get the old servo out, compare it to the old one

1) you'll want to set the new servo to the same operating position as the old one. By that I mean run the servo motor forwards or backwards to match the existing position of the replacement servo (which sounds like full cool in this case). This is done by applying "+" and "-" to the red and purple wires. Reversing the wires reverses the motor rotation. If you don't do this everything will be out of pahse and you'll have to redo the adjustments all over again

2) There is an early and a late servo. The difference is one micro switch. Take a good look and compare the two. I can't remember if the early has an additional switch or one less switch. I'll try to look up my notes.

Lastly.....

Did you check the amplifier fuse?

Are you sure the amplifier is faulty? Amp problems are much more common the servo problems

Cheers
DD

 

i was offered a 1990 XJ6 with 20,000 miles, always garaged silver with Black interior as a trade. He said give him my series 3 and 3500 bucks and he will give me the xj40.......