B250 3/4 Ton Van L6-225 3.7L (1984)
Air Diverter Valve: Customer Interest
Air Switching Valve - Loud Gurgling Sound
Models
1983-1984 California & 1984 Federal Emission Rear Wheel Drive Vans Equipped With 225-1 BBL Engine
Subject
Air Switching Valve Breakage
Index
EMISSIONS
Date
May 13, 1985
No..
25-03-85
P-1701-C
SYMPTOM/CONDITION
The air pump combination switching/relief valve may contact the floor pan sheetmetal and possibly be damaged due to engine torque rotation.
This type of failure is characterized by a loud gurgling sound which occurs when the air switching valve is damaged.
PARTS REQUIRED
Service Package PN 4342803
Contains the following components:
2 -
Clamps, Switch Relief Valve Hose
PN 2448761
1 -
Clamp, Check Valve End of Hose
PN 2448762
1 -
Air Switch/Relief Valve
PN 4227671
1 -
Hose, Switch Relief Valve to Check Valve
NPN
1 -
Gasket, Valve to Air Pump Mounting
PN 4179700
Must be ordered separately:
1 -
Authorized Modification Label
PN 4275086
REPAIR PROCEDURE