Fleetwood V8-368 6.0L VIN 9 FI (1982)
Wiper Arm: Customer Interest
Windshield Wipers - Chatter and/or Wipe Unevenly
Bulletin No.T
87-90
File in Group
8
Number
56
Corp. Ref. No.
711502
Date
April '87
SUBJECT:
WINDSHIELD WIPERS CHATTER AND/OR WIPE UNEVENLY
MODELS AFFECTED:
1985-1987 DE VILLES 1977-1987 BROUGHAMS 1982-1987 CIMARRONS 1986-1987 ELDORADOS AND SEVILLES
Some vehicles may exhibit a condition where the windshield wipers chatter and/or wipe unevenly. Several items may contribute to this condition. To
completely repair this condition, ALL items listed in this bulletin should be checked and repaired as necessary.
CLEAN WINDSHIELD GLASS
Clean windshield glass with GM glass cleaner, Bon Ami, or equivalent. The cleaner used should be one which will not harm paint finish or scratch glass.
The glass is clean when water no longer "beads up", but "sheets" across the entire glass surface.
CLEAN WIPER BLADE ELEMENTS
Remove wiper blade assembly from wiper blade arms. Clean rubber elements with a cloth which has been saturated in a solution of 50% water and 50%
GM Opti Kleen, or a solution of 50% water and 50% methyl alcohol. Rinse blade assemblies with water and reinstall on wiper arms.
Figure 1 - Installing Reveal Molding on 1985-1987 De Villes
CHECK FIT OF WINDSHIELD REVEAL MOLDING, FIGURE 1
On vehicles equipped with depressed park (hidden) wiper blades and a windshield lower reveal molding, check the fit of the reveal molding across the
base of the windshield. The lower reveal molding must fit uniformally along the glass surface to allow the wiper blades to move freely from the glass
wipe area to the park position when the wipers are turned off. Gaps in excess of 1.0 mm (.040 in.) should be corrected using the following procedure.
1.
Remove both wiper arm assemblies.
2.
Remove self drilling screws (7 mm) which retain the reveal molding.
3.
Clean the underside of the lower reveal molding and the windshield glass. Remove any obstructions which prevent the reveal molding from
matching the glass contour.
4.
If necessary, the lower reveal molding should be reformed as required to improve the fit. Care should be used to prevent marring the molding
surface.
5.
Install the lower reveal molding. On 1985-1987 De Villes and Fleetwoods, check to see that the center screw is aligned with the slot on the cowl
vent screen, (Figure 1, Item 6). If not, fill the old holes with sealant and use the slot on the cowl vent screen as a pilot for the center screw. Install
new self-sealing screws (P/N 20564495) starting with the center screw and work outward. Use over sized screws if necessary.
