Engine - Rough Idle/Hard Start After Hot Soak
Article No. 85-14-9HARD START - AFTER HOT SOAK
- 2.3L EFI TURBO
IDLE - ROUGH - AFTER HOT SOAK - 2.3L EFI TURBO
FORD 1985 SVO MUSTANG, THUNDERBIRD
LINCOLN-MERCURY 1985 COUGAR
MERKUR 1985 MERKUR XR4Ti
Figure 10 - Injector:
Figure 11 - Injector:
Poor injector operation may cause Long Crank Times and/or an Unacceptable Idle after a Hot Soak. Metal-tometal contact between the Fuel Injector and Intake Port results in excessive heat exchange at the contact point (See Figure 10) causing the concern. The concern may be corrected by installing injector spacers using the following procedure. (See Figure 11).
1. Remove the fuel tank cap, then release pressure from the fuel system by opening the pressure relief valve on the fuel line, using Tool T80L-9974-A or equivalent. The pressure relief valve is located in the upper RH corner of the engine compartment (Thunderbird/Cougar/Mustang) or on the fuel supply manifold (Merkur).
NOTE: The cap on the relief valve must be removed.
2. Remove the two fuel supply manifold retaining bolts.
3. Remove retaining nut from fuel pulse dampener, then disengage dampener from bracket.
4. Carefully disengage the fuel supply manifold along with the fuel injectors from the intake manifold.
Figure 12 - SPACER INSTALLATION:
5. Install injector spacer to pintle protection cap and seat against rim as shown in Figure 12. Use one spacer per injector. The spacer is designed to function as a spring clip, but use caution and visually inspect for damage after installation onto the cap.
6. Lubricate the lower injector O-ring on each injector with light grade oil. Do not use silicone grease, as it will clog the injectors.
7. Carefully seat fuel injector manifold assembly (with the four injectors) to the intake manifold, and secure manifold with two attaching bolts. Tighten to 20-30 N-m (15-22 ft.lb.).
8. Install fuel pulse dampener to bracket. Tighten nut to 7.3 - 9.0 N-m (5.5 - 6.5 ft.lb.).
PART NUMBER PART NAME CLASS
E5PZ-9D905-A Injector Spacer BG
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP9424B85
TIME: 1.0 Hrs. DLR. CODING: Basic Part No. DRIVE - Code: L2