Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Cruise Control Vacuum Reservoir: Customer Interest
Speed Control - Loss Of Speed Going Up Grades
Article No.
SPEED CONTROL - LOSS OF SPEED GOING
87-18-19
UP GRADES - 4.9L OR 5.0L ENGINE
WITH AOD TRANSMISSION
LIGHT TRUCK:
1983-87 E SERIES, F SERIES, BRONCO
ISSUE:
Loss of speed when going up grades with the speed control engaged and the transmission in overdrive "(D)" may be caused by an
insufficient vacuum reserve. Speed loss greater than 10 MPH (16 km/h) will cause the speed control to shut off.
ACTION:
To correct this, install a speed control vacuum reservoir using the following service procedure.
1.
Remove any slack from speed control actuator cable. Make sure the cable allows the throttle lever to return to idle.
2.
Install the speed control vacuum reservoir (E3TZ-9E799-B) as follows:
a.
Locate the 5/16" vacuum hose connecting the engine vacuum to the speed control servo.
b.
Disconnect the hose at the speed control servo and connect it to the vacuum reservoir port marked "VAC".
c.
Route 5/16" vacuum hose from the unmarked port on the vacuum reservoir to the open speed control servo port.
d.
Secure the speed control vacuum reservoir.
NOTE:
Advise the owner to shift the gear selector to Drive "D" when the vehicle is under a load condition. This information is contained in the
Owner Guide.
PART NUMBER
PART NAME
CLASS
E3TZ-9E799-B
Speed Control Vacuum
B
Reservoir
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION: SP871819A
TIME:
0.3 Hr. DLR. CODING: Basic Part No. 9C735 - Code: 53
