Carburetor Duty Cycle Solenoid - Surge/Miss
83ford7 Article No. 83-21-10SURGE/MISS - 2ND - 3RD GEAR - (2.3 HSC) A/C IN OFF POSITION - MTX
FORD 1984 TEMPO
LINCOLN-MERCURY 1984 TOPAZ
CALIBRATION: 4-25D-R12
Surge/miss condition in 2nd/3rd gear on vehicles equipped with MTX transmission can be serviced by revising vacuum signal to carburetor duty cycle solenoid.
1. Perform EEC IV Diagnostic QUICK TEST. If system O.K., proceed to Step 2.
2. Remove sight shield by removing two retaining pins and save.
Figure 12:
3. Remove the black vacuum line at the bottom port of the carburetor duty cycle solenoid valve and cap (382444-S) at the three-way tee (Figure 12).
Figure 13:
4. Tee (373846-S) into the vacuum line and install vacuum check valve (D9AZ-12A197-A) in the vacuum line and connect to bottom port of the carburetor solenoid valve (Figure 13).
Figure 12:
5. Tee (383008-S) into EGR valve vacuum line and install a 2 cubic inch vacuum reservoir (D6TZ-9E453- A) with one port capped (382443-S) (Figure 12). Use bulk 7/32 vacuum tubing to connect vacuum reservoir to 1/4" leg of 383008-S Tee. Insure hose does not kink.
6. Band all vacuum lines and components.
7. Install sight shield.
8. Perform a 3-mile drive from a stop and accelerate to 55 mph with light, medium and heavy acceleration to verify the above concern has been alleviated.
9. If drive concern persists, replace carburetor.
Figure 14:
Figure 15:
10. Install a Ford Modification decal denoting changes and advancing calibration 4-25D-R12 to 4-25D-R17. (Figures 14 and 15).
Obtain an Authorized Modifications decal and list the date, dealer number and summary of alterations performed. Select a prominent place adjacent to the Vehicle Emission Control Information decal suitable for installing the Authorized Modifications decal. Clean the area, install the decal and cover it with a clear plastic decal shield.
PART NUMBER PART NAME CLASS
382444-S Cap - Vacuum BS
D9AZ-12A197-A Valve - Vacuum Check A
373846-S Tee B
383008-S Tee S
D6TZ-9E453-A Reservoir - Vacuum A
382443-S Cap - Vacuum S
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP12197A83
TIME: 1.2 Hrs. DLR. CODING: Basic Part No. DRIVE Code: H8