E 350 Van V8-7.3L DSL Turbo VIN F (1995)
Hose Clamp: Customer Interest
Cooling System - Leaking Radiator Hose Joint
Article No.
95-6-16
03/27/95
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COOLING SYSTEM - LEAKING RADIATOR HOSE
JOINT - 4.9L/5.0L/5.8L/7.3L DIT/7.5L - UPGRADED
HOSE CLAMPS
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LEAKS - COOLANT - 4.9L/5.0L/5.8L/7.3L DIT/7.5L - RADIATOR HOSE JOINT - UPGRADED HOSE CLAMPS
LIGHT TRUCK:
1995-96 BRONCO, ECONOLINE, F-150-350 SERIES
ISSUE:
A coolant leak may occur at the radiator hose joints. This can be caused by:
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Debris on the sealing surface
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Misassembly of the hose and/or clamp
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Defective or damaged hose clamp
ACTION:
Refer to the following procedures for diagnosis and repair.
"Mega" hose clamps are to be used, if needed, because they have 30% more clamping force than clamps used in the past. They expand and contract with
the thermal cycling of the joint, thus retaining their clamp load and efficiently sealing the joint over long periods of time. The screw-type dual-wire and
worm gear style band clamps are less robust under climatic and system thermal cycling.
NOTE:
THE "MEGA" CLAMPS WERE SPECIFICALLY SIZED FOR 1995 AND LATER VEHICLES. THEY ARE NOT APPROPRIATE FOR
VEHICLES BEFORE THE 1995 MODEL YEAR BECAUSE THE JOINT SEAL CONFIGURATION AND DIMENSIONS ARE DIFFERENT.
NOTE:
IF A 1995 VEHICLE IS RECEIVED WITH A DUAL-WIRE CLAMP, REPLACE IT WITH A COMPARABLE BAND CLAMP.
SERVICE PROCEDURE
1.
Pressure test the system to determine the location of the leak. Proceed with the following steps only if it is a radiator hose joint that is leaking.
