Fix a moonroof first you need to know what's the defective part. In most cases the part that break the most is the SUNROOF MOTOR. I hope this will help you.
duct tape
someone help i cant close my 1990 Lincolns moon roof
I was able to fix mine by vacuuming out the tracks and lubing the jack screws. No problems now (with the moonroof that is).
go to a freaking mechanic.
on each coner in the front of the moonroof there are holes that a hose runs down the A-frame of the car for drainage check to see if block use a stiff wire
i need to know where the alternator is located on a 1990 Lexus LS400
where to locate the factory alarm fuse in my lexus ls 400 1990
Where is the camshaft position sensor located on 1990 Lexus ls400?
How do you fix a rear wheel bearing for a Lexus ls400
You didn't mention what is wrong with it, like it won't tilt, move, close. If it is stuck open etc. there is a small panel in the back seat area, look up and there is a panel that you can remove and a wrench is there that you can manually move the moonroof.
Lexus did not come into existence until 1990, so there were on Lexus commercials in the 1980's.
A 1990 LS400 has 250 horsepower as rated by the factory.