Escort L4-116 1.9L SOHC HO (1989)
Throttle Body: Service and Repair
Central Fuel Injection - CFI
Throttle Body Assembly
REMOVAL
1.
Remove air cleaner assembly.
2.
Remove electrical connector at inertia switch located on LH side of luggage compartment.
3.
Remove fuel cap and release tank pressure.
4.
Release fuel system pressure by cranking engine for 15 seconds.
5.
Disconnect throttle cable (and transaxle throttle valve lever on ATX models).
6.
Disconnect electrical connector on Idle Speed Control (ISC), Throttle Position Sensor (TPS), and fuel injector.
7.
Disconnect fuel inlet, outlet connections and EGR vacuum line at throttle body assembly.
8.
Remove three retining bolts and remove throttle body assembly.
9.
Remove mounting gasket from intake manifold.
DISASSEMBLY
NOTE: Refer to SPECIFICATIONS/MECHANICAL for torque values.
1.
Remove Throttle Position Sensor (TPS) attaching screws and remove TPS.
2.
Remove Idle Speed Control (ISC) motor and bracket assembly from throttle body.
3.
If ISC is to be removed from bracket, remove three retaining screws.
ASSEMBLY
1.
Attach ISC motor, if removed, to bracket with three retaining screws. .
2.
Install ISC motor and bracket assembly, if removed, to throttle body with two retaining screws
3.
Position TPS with connector facing upward toward main body. Rotate counterclockwise ONLY and align screw holes. Install retaining screws.
Tighten.
CAUTION: Failure to install the TPS in this manner may result in excessive idle speeds.
4.
Position main body to throttle body gasket. Install throttle body to main body with four retaining screws.
INSTALLATION
NOTE: Refer to SPECIFICATIONS/MECHANICAL for torque values.
1.
Clean mounting surface and position new gasket on intake manifold.
2.
Position throttle body assembly on intake manifold. Apply two drops of Locktite Threadlocker 242 Liquid or equivalent on long ends of three
bolts, so that the last 6 to 8 threads are covered.
3.
Tighten three bolts by hand while centering throttle body on spacer.
4.
Tighten bolts in sequence (1, 2, and 3) to specification, Step 1.
