Lower Radiator Hose - Rub Through

91pontiac09

Bulletin Number: 91-6-44
Reference Number: 136302
Publish Date: 6/91


Subject: LOWER RADIATOR HOSE RUB THROUGH AT RIGHT FRONT ENGINE MOUNT (REPLACE HOSE ASSEMBLY)

Models
Affected: 1990-91 GRAND AM MODELS WITH 2.5L (VIN U)





Some 1990-91 Grand AM models equipped with a 2.5L (VIN U) engine may experience a rub through at a point where the lower radiator hose routes by the right front engine mount. If conditions are right, the hose will contact one of the bolt heads on the mount causing a rub through. This may result in a loss of engine coolant.

To correct this condition, replace hose assembly with a 1989 production style hose.This hose is formed differently and does not come in contact with the mount bolt. (Refer to Illustrations for differences).

This replacement of the lower hose must be done any time a rub through leak is noted. It is also suggested that it be replaced if any contact is seen during routine service.

Parts in stock at GMSPO will be replaced with 1989 production style hoses.

Part numbers for lower hose assemblies:

Current (1990-91) 22551441 (DO NOT USE)

Replaced by (1989) 22538799 (FOR USE IN 1989-91
APPLICATIONS)

Parts are expected to be available on July 1, 1991. Until then, normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the part will be shipped premium transportation surcharges. However, the part will be shipped premium transportation at dealer's expense. All other order types will be cancelled as incorrectly ordered while the 400 control is in place.


Use current labor operation and time allowance.