87 740 sunroof does not pause between tilt and open..

  • Thread starter Thread starter rexdjohnston
  • Start date Start date
R

rexdjohnston

87 745, after some cleaning the sunroof opens closes and tilts up and
down well enough, but it does not pause between, if that makes sense.

I assume this is a fault in the motor assembly, a relay or switch or
something?


Thanks..
 
87 745, after some cleaning the sunroof opens closes and tilts up and
down well enough, but it does not pause between, if that makes sense.

I assume this is a fault in the motor assembly, a relay or switch or
something?


Thanks..
Click to expand...


There's some microswitches in the gearbox assembly, this will happen if
one of those fails. Open it up and you'll see what I mean.
 
There's some microswitches in the gearbox assembly, this will happen if
one of those fails. Open it up and you'll see what I mean.
Click to expand...

.... and don't be too hopeful of finding a replacement for the above
mentioned microswitches. My 760 sunroof did the same and you just get
good at eyeballing the middle position. Or you can buy the whole part
from a yard.

blurp
 
blurp said:
... and don't be too hopeful of finding a replacement for the above
mentioned microswitches. My 760 sunroof did the same and you just get
good at eyeballing the middle position. Or you can buy the whole part
from a yard.

blurp
Click to expand...


They look like pretty standard parts, I haven't had to replace them yet
but Mouser, All Electronics, Newark, etc ought to have something suitable.
 
James said:
They look like pretty standard parts, I haven't had to replace them yet
but Mouser, All Electronics, Newark, etc ought to have something suitable.
Click to expand...

Generally what happens is the dash switch sticks, which keeps a solenoid
in the motor assembly energized continuously. This solenoid is not
designed to be activated for long periods, overheats and melts. You can
remove this and rewind the solenoid if you're real handy with a
soldering iron, and in general.

--
Mike F.
Thornhill (near Toronto), Ont.

Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
You must log in or register to reply here.
Back
Top