Heater Case - Hot Spot on Passenger Side

9216chevy09

Number: 91-313-1A

Section: 1A

Date: MAY 1991

Corporate Bulletin No.: 061102


Subject:
UNDER-DASH HEATER CASE HOT SPOT


Model and Year:
1988-91 C/K TRUCKS


Some 1988-91 C/K Pickups may experience a heater case hot spot in the passenger side floor area.

If this condition is encountered, a newly released insulator may be installed on the heater case.

SERVICE PROCEDURE:

1. Clean heater case with brake cleaner to allow insulator to adhere to surface.

2. Fold insulator to the shape of heater case.

3. Align edges of insulator to heater box before installation.

4. Peel backing off insulator and install insulator to heater case.

SERVICE PARTS INFORMATION:

PART NUMBER DESCRIPTION QUANTITY

15646548 Insulator 1

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

For vehicles repaired under warranty use:

LABOR OPERATION: T7196

LABOR TIME: 0.2 hr.

Trouble Code: 92