Cooling System - Lower Radiator Hose Chafing

Number: 88-35

Section: 6B

Date: August, 1987

SUBJECT: LOWER RADIATOR HOSE CHAFING


MODELS: 1988 1500-3500 C/K TRUCKS WITH 5.0L (VIN CODE H) AND 5.7L (VIN CODE K) TBI

ENGINES

FIGURE NO. 1:

Some 1988 C/K trucks with the 5.0L or 5.7L engine may experience a condition where the lower radiator hose interferes with the frame strut rod and chafes the hose, which could result in a coolant leak. If this condition is encountered, it can be repaired by replacing the lower radiator hose with a new design hose, which contains an additional hose protector (See Figure No. 1).

This condition was corrected in production effective with the following VIN break points:

Pontiac GMC - JE500408
Chevrolet - JE101341

Fort Wayne GMC - JZ500501
Chevrolet - JZ101495

Oshawa GMC - J1500951
Chevrolet - J1103087

PARTS INFORMATION

Part Number Description Application Quantity

15607247 Hose C/K 1,2,3 1
5.0L/5.7L Without A/C

15607248 Hose C/K 1,2,3 1
5.0L/5.7L With A/C