Rough Idle & Poor Fuel Economy in F 250 2WD Pickup V8-351 58L (1985)
Intake Air Heater: All Technical Service Bulletins
Engine - Rough Idle/Poor Fuel Economy/Noise
Article No. 85-25-25
IDLE - ROUGH/POOR FUEL ECONOMY/ENGINE NOISE (5.8L (W)) - INOPERATIVE INTAKE MANIFOLD HEAT CONTROL VALVE
LIGHT TRUCK 1985-86 E AND F SERIES, BRONCO
The subject concerns could be caused by an inoperative intake manifold heat control valve. The control valve butterfly plate may have become loose or
detached from its shaft.
For servicing such a condition, the following procedure is recommended:
1.
Remove the intake manifold heat control valve assembly, located on left side (near rear) of intake manifold.
NOTE:
It is not necessary to remove carburetor.
2.
If the heat control valve is found inoperative or damaged, replace with valve (E4TZ-9G464-A).
PART NUMBER
PART NAME
CLASS
E4TZ-9G464-A
Intake Manifold
R
Heat Control Valve
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP9464A85
TIME:
0.3 Hr. - F Series 0.3 Hr. - Bronco 0.5 Hr. - Econoline DLR. CODING: Basic Part No. 9G464 - Code: N4, P8, T3