This writeup was created to cure the F-body slow raising passenger side window. The wiring for the window motors is a pretty poor design which we will address. The reason it goes up so slow is because it draws power off of the same line as the drivers side window. So what we are doing is giving the passenger side it’s own power source. It’s pretty easy to complete and fairly cheap as well. After performing the steps here you can expect a faster window and a longer window motor lifespan. You will need:

Materials:

- Red & Black Wire 12 guage

- Ring Terminals (Center needs to be 3/8″)

- Female Disconnects

- 2 5-pin Automotive 5amp Relays NAPA Part #AR272SB

- Inline fuse holder with 20 amp fuse

- Zip ties, Wire Cutters/Crimping Tool, Basic hand tools

The Procedure

Here is a picture of the relays and the inline fuse holder

1. Disconnect the negative battery terminal.

2. Using a ring terminal, connect the inline fuse holder to the positive lead on your cars battery.

3. Run a positive wire from the inline fuse to your cars interior. You’ll have to remove the PCM to get access to a port in the firewall.

4. Remove the interior panel to gain access to the brown, blue and black wires going into the door panel as well as the grounding post. You want to also pull the red wire through that your attached to the positive lead on your battery.

5. Here is the schematic you need to follow using the two relays.

6. Properly ground all wiring here.