Replacing a window roller on a 1994 Chevrolet I need to know how to do it

window regulator are the one brake ,they are rectanular,you need to replace them with round roller one,I believe part # is DORMAN Part # 74444

This trouble code could be 3 different possibilities...

Code 18 can be any of the following:

DTC 18 ABS Enable Relay Coil Circuit Shorted To Battery
DTC 18 Injector Circuit Malfuntion
DTC 18 Discriminating Sensor Interconnect Open (Supplemental Inflatable Restraints)

Hope this helps...

Remove the rest arm, door handle and all the trim on the door panel. Pop out the plastic clips, working from the bottom rear, across the bottom, up the sides. Lift out the door panel. Unscrew the bolts or drill out the rivets holding the window crank. Move the assemly around inside the door to reset the rollers back into the track. Reverse the procedure.

I have same problem, just ordered rollers , they look alike as old riveted rollers and there is a nut on the other side. Do you know hot to replace them?

YES THE OTOR NEEDS TO BE REPLACED

replace a pin and roller

a bad ground a relay fuse ? hope this helps

there are clips that pull out of holes in door around perimeter of door remove panel, that should give you access 

the best thing that u can do is go to the store and buy the repair manual for your car they usually run between $15 and $20 and they will have step by step instructions and pics....not only is it good for this but pretty much anything else u want to know about ur car..hope this helped

Sounds like something just fell apart inside. Probably just a roller or something. If you can't do it yourself, it shouldn't cost too much. Just make sure you stand there and watch, so you don't get ripped off. In fact, if you take the cover off the inside of the tailgate, maybe you can fix it yourself.