K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Correction
Clean the windshield glass with glass cleaner (P/N 1050427) or equivalent.
Important:
The glass is clean when rinse water does not "bead-up", but "sheets" across the entire glass surface. Multiple cleanings may be required to remove all
contaminants.
Then replace the respective wiper arms and blade assemblies with new part numbers listed in the corresponding service procedure.
C/K and Topkick/Kodiak Service Procedure
Important:
The new wiper arms are significantly different in appearance than the former arms. For this reason they should be initially installed as a set and NOT
replaced individually.
1.
Remove the driver's side and passenger's side wiper arms according to Section 8E1 of the Service Manual (Wiper Arm Assembly Replacement).
2.
Install the redesigned wiper arms with the enhanced wipe angle according to Section 8E1 of the Service Manual (Wiper Arm Assembly
Replacement). (Driver's side P/N: 22144823; Passenger's side P/N: 22144822)
Notice:
Mid-way up the back of the arm will be a letter D (driver) or a letter P (passenger). Make sure that the arms are installed on the correct side.
Incorrect installation will cause an improper wipe angle.
3.
Install the redesigned wiper blades according to Section 8E1 of the Service Manual (Wiper Blade Assembly Replacement - P/N: 22154886). The
redesigned wiper blades have a shepherd's hook attachment and 6 contact points compared with 4 contact points and a pin attachment on the
former blades.
S/T Service Procedure
1.
Remove the driver's side wiper arm according to the procedure listed in Section 8E1 of the Service Manual (Wiper Arm Assembly Replacement).
2.
Install the redesigned driver's side wiper arm (P/N: 15723135) according to Section 8E1 of the Service Manual (Wiper Arm Assembly
Replacement). This redesigned arm has an enhanced wipe angle.
3.
Install the redesigned driver's side wiper blade (P/N: 15731161) according to Section 8E1 of the Service Manual (Wiper Blade Assembly
Replacement). This redesigned blade has 8 contact points for more uniform contact pressure.
Notice:
The driver's side arm and blade will NOT correct a chatter/squeak on the passenger's side due to differing wipe angles.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
