Mustang V8-302 5.0L COBRA (1995)
STEP 3
If the engine does not idle properly, proceed with this procedure.
NOTE: In some cases, even if the idle speed is OK, proceed with this procedure if the customer's complaint persists (idle air control duty cycle
may be out of range).
STEP 4
Turn the engine Off, and install a 0.025 in feeler gauge between plate stop screw and the throttle lever.
STEP 5
Start engine and run at 2500 rpm for 30 seconds, then return to idle.
STEP 6
Place the transmission in Park (A/T), or Neutral (M/T).
Typical Throttle Return Screw Location
STEP 7
Using a tachometer, verify idle speed is 704 +/-10 (A/T), or 640 +/-10 (M/T) rpm.
NOTE: Before proceding with this procedure, shut the engine Off, wait ten seconds. Re-start engine and recheck idle for two minutes. This
eliminates the possibility of entering part throttle mode.
Throttle Plate Orifice Plug
RPM TOO LOW
a. DO NOT clean the throttle body, check for the plate orifice plug.
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IF NO PLUG, turn the screw clockwise to the desired rpm.
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IF PLUG from previous service, remove and adjust the screw in either direction as required. Screw must be in contact with the lever pad
after adjustment.
RPM TOO HIGH
a. Turn Off the engine.
b. Disconnect air cleaner hose.
c. Temporarily block the throttle plate orifice with tape. If the orifice already has a plug from previous service, proceed to Step (e).
d. Restart the engine, and check idle speed, using a tachometer.
NOTE: Vehicles with Mass Air Flow Sensors, reconnect the air intake duct hose before checking idle rpm. If the engine stalls, crack open the
plate stop screw, DO NOT over adjust.
e. If rpm continues to be fast, Run Key On Engine Off (KOEO) Self-Test.
f.
If rpm drops to the the value in Step 7 or lower, or the engine stalls, turn the engine Off, disconnect the air cleaner hose, and remove tape from
