TrailBlazer 4WD L6-4.2L VIN S (2002)
5. Use a heat gun in order to repair the grid line:
^
Hold the heat gun nozzle 25 mm (1 in) from the surface.
^
Heat the repair area for 2-3 minutes.
6. Connect the electrical connector.
7. Test the grid line operation in order to verify the grid line repair.
Rear Window Defogger Braided Lead Wire
CAUTION: Refer to Glass and Sheet Metal Handling Caution in Service Precautions.
1. Use a solder containing 3 percent silver and a rosin flux paste in order to solder and attach the rear defogger bus bar lead wire and/or defogger
terminal.
2. Buff the repair area with a fine steel wool in order to remove the oxide coating that was formed during window manufacture.
3. Use a brush in order to apply the paste-type rosin flux in small quantities to the appropriate area:
^
The rear defogger bus bar lead wire
^
The defogger terminal repair area
CAUTION: Refer to Window Retention Caution in Service Precautions.
IMPORTANT: Do not hold the tool in one spot or operate the tool on the window for longer than 30-40 seconds.
If the window becomes hot to the touch, allow the window to air cool before proceeding further. Cooling with water may crack the heated window.
Avoid excessive pressure in order to ensure that the window will not overheat.
4. Coat the solder iron tip with solder. Apply only enough heat to melt the solder and only enough solder to ensure a complete repair.
5. Apply the solder to the feed bus bar or the ground bus bar.
Draw the soldering iron tip across the fluxed area. Thinly coat the bus bar with solder.
6. Apply a small amount of flux to the appropriate areas:
