oldsafe

bought new motor and new regulator still does not move any idea's

mtnfreak

Put 12V directly to the motor and see if that does anything. Make sure you've got power to: motor, relay (side panel behind driver), console switch, tailgate switch.

livelarg

take off the rear left (drivers side) corner panel for the top. there is a connector there, disconnect the connector, then try again. This will disconnect the wiper relay for the rear window.
If it still doesn't work, there may be a problem witht the relay behind the drivers side back seat.
There are 3 different relays that have to work before the window will go down, you have to check them all. it is a common problem.
Also, be sure to check with the switch AND the key!

fenman666

hi dont know whether you have sorted it yet but i spent 2 days going over the relays harness etc it turned out to be the park switch on the rear wiper it looked as if it was closed but pushing it a little bit further everything jumped into life always the last and easiest thing...........also if the harness is disconnected in the rear pillar the window will not work because the the electrics think the top is off also 1/2 way along the removable top one bolt in particular has to be in as this presses on a switch also telling the relays the top is off on my 1st gen its on the l/h side

livelarg

FEBMEN666:

How much lift does your truck have? I am trying to decide on what lift I am putting on my 88'

thanks

fenman666

35x12.50x15 bfg tyres... 3" bodylift