The old Electric Window problems

[V8Bart]

Sorry for another window post, there must have been hundreds over the years.
I've tried all the suggested fixes.
Silicone spray, grease runners, checked 12v supply, tried adjusting runners etc.

Ironically passenger side now working great but drivers keeps sticking open.
Video to give you an idea. https://youtu.be/lIT7FYnD_q0

Thanks for any advice

[FlipFlopGriff]

Ian,
Have you tried a replacement switch? or borrow one. Could be dodgy connections need cleaning up on the back, they are easy to remove with a piece of flat plastic and prise them out.
FFG

[V8Bart]

Cheers ff, will try swapping.
Teach me to fix anything, re wiring mirrors as well now. Lol

[Oldred_V8S]

You mentioned you had checked the 12v supply, but you could get 12v through a wet finger but not enough current to power the windows. Put the meter leads into the back of the motor plug (whilst still connected) and try to operate the window; what voltage do you get then? The wiring on TVR's is not, you will be surprised to learn, up to the job. It deteriorates over the years and heat increases resistence, resulting in slow running windows.

Unfortunately you have lubricated the runners, which has a short term fix, but attracts more dirt and crap and you are in a decreasing cycle of having to lube the runners more often.

What condition are the runner rubbers in? They should have a felt coating. Once the felt wears away you are trying to make glass slide on very grippy rubber. This combined with the crap wiring results in slow windows.

I have fitted a relay mod to the window circuit of my V8S and the windows rise and fall like a modern car. I had also previously changed the window runner rubbers.

[mcosh]

Check all the connections to the motor not just the one on the top. If you unclip the wiring in the door you will find another white 2 pin connector. This gets really cruddy as well. Final test is a full 12v direct from the battery with two bits of spare wire....if its still slow, then its mechanismn out.....really easy just a couple of 13mm bolts. You can then remove the motor from the unit (small star allen key) which has a corkscrew mechanismn inside. Every one of these i've done has been totally wet and full of brown sludge. Give all the parts a good clean and decent lube and test it while out the door.

I have yet to find a motor that's completely dead. Also don't forget to take the switch out of centre console and clean all the pins on that first before the above!!!! weak earth there and you get same problems

[V8Bart]

Thanks guys, Ive got all that to go at. Will post back once tried.
Fingers crossed.

[GJR]

Oldred_V8S said:

I have fitted a relay mod to the window circuit of my V8S and the windows rise and fall like a modern car. I had also previously changed the window runner rubbers.

Oldred, I've heard about this relay mod before. Where can you buy it and where does it wire into the circuit? Is it easy to do as a DIY job?

[Oldred_V8S]

GJR said:

Oldred_V8S said:

I have fitted a relay mod to the window circuit of my V8S and the windows rise and fall like a modern car. I had also previously changed the window runner rubbers.

Oldred, I've heard about this relay mod before. Where can you buy it and where does it wire into the circuit? Is it easy to do as a DIY job?

No kits to buy that I am aware of. I just made mine out of bits. I wired mine (V8S) in the doors, but I converted a friends Chim to relays and placed them in the footwell area.