Escort L4-116 1.9L SOHC HO (1989)
4)
25.
Connect thermactor air hose to catalyst and position clamp in place. (Fig. 4)
26.
Lower vehicle.
27.
Connect Rotunda Air Bypass Valve Actuator 113-00009 into Fuel Injector Tester/Cleaner 113-00001 or equivalent.
28.
Disconnect air by-pass valve connector on throttle body and connect actuator to air by-pass valve. (Fig. 7)
29.
Start actuator.
30.
Spray just enough Carburetor Tune-Up Cleaner D9AZ-19579-AA or equivalent into throttle bore to wet bore and throttle plate.
31.
Spray carburetor tune-up cleaner for about five seconds into idle air by-pass valve inlet passage while actuator is operating.
32.
Stop actuator. Let everything soak for 15 minutes.
33.
After soaking, saturate cleaning brush with solvent and brush between throttle bore and plate while holding throttle wide open.
34.
Repeat, saturating brush and scrubbing for one to two minutes making sure to reach into corners where throttle shaft meets with bore wall.
35.
Start actuator.
36.
Spray carburetor tune-up cleaner into throttle bore to wash away residue. Do NOT SPRAY FOR LONGER THAN 6 CONTINUOUS SECONDS.
37.
Spray carburetor tune-up cleaner into idle air bypass valve passage leading to inlet valve.
CAUTION:
Do not spray for longer than 6 continuous seconds on engines that have air flow meters and are not running.
38.
Stop actuator.
NOTE:
Make sure throttle plate operates freely and closes properly.
39.
Install air cleaner outlet duct. Tighten clamps to 1.4-2-3 N-m (13-20 lb.in.).
40.
Start and run engine for about one minute to dry out solvent residue.
41.
Operate actuator to make sure solvent is purged from idle air by-pass valve.
42.
Disconnect air bypass valve actuator from idle air by-pass valve.
