4 Runner 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1989)
Heater Core: All Technical Service Bulletins
A/C - Gurgling (Water Rushing) Noise From Heater Core
REFERENCE
ENGINE
NUMBER
029
DATE
11-25-88
MODEL
VN
TITLE GURGLING (WATER RUSHING) NOISE FROM HEATER CORE
To prevent the gurgling (water rushing) noise from the heater core due to air being trapped in the system, the following production change has been
adopted. (See following illustrations).
PRODUCTION CHANGE EFFECTIVE:
Starting VIN:
Starting Date:
JT#VN62##K0026731
August, 1988
JT#VN66##K0026731
August, 1988
PART NUMBER INFORMATION:
Part Name
Prev P/N
New P/N
Hose, Water By-Pass, No. 1
16261-65010
16261-65011
Outlet, Water
16331-65010
16331-65011
FIELD FIX INFORMATION/PROCEDURE:
For field fix of 4 x 4 V-6 vehicles produced before the production change, install both by-pass hose and water outlet as a set.