F 250 4WD Pickup V8-351 5.8L VIN G 2-bbl (1984)
Fast Idle Cam: All Technical Service Bulletins
Carburetor - Stalls and Stumbles During Cold Start
Article No. 84-4-30
STALLS - COLD START (5.8L 4V)
LIGHT TRUCKS 1984 E, F AND BRONCOS
Some vehicles built prior to 12-2-83 at Lorain Assembly Plant may not have the latest fast idle cam and may experience stalls and stumbles on cold start.
FIGURE 34
Vehicles with the above concern may require a fast idle cam replacement to attain the latest design level. Inspect the fast idle cam to see if a yellow,
white, or green paint spot appears on the weighted end of the cam as shown in Figure 34. If the spot is present, obtain fast idle cam part number
E4PZ-9597-C and perform the following cam replacement:
NOTE:
Due to an omission in the Truck Shop Manual, refer to the 1984 Car Shop Manual, Volume D, for carburetor disassembly and assembly
procedures.
1.
Remove the carburetor from the vehicle.
2.
Note the choke cap index setting for later reference, then remove the tamper-resistant screws as described on page 24-28-10 of the Car Shop
Manual (Reference: Figure 19).
3.
Remove the choke housing assembly per 1984 Car Shop Manual (page 24-28-11) then remove and discard the old fast idle cam.
4.
Install the new E4PZ-9597-C fast idle cam, reassemble and then reinstall the choke housing assembly.
5.
Reinstall the choke cap, gasket, and retainer, using new tamper-resistant screws where appropriate. Be sure the choke cap is indexed as previously
noted.
6.
Reinstall the carburetor on the engine, and reconnect all fuel, vacuum, and electrical connections.
7.
Start the engine, check for fuel leaks, and warm to operating temperature. Reset the curb idle RPM and fast idle RPM to specification.
8.
Reinstall the air cleaner assembly.
PART NUMBER
PART NAME
CLASS
E4PZ-9597-C
Fast Idle Cam
C
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP9597A84
TIME:
0.7 Hr. DLR. CODING: Basic Part No. 9597 Code: 42
