How to Repair the Ignition Timing on a 1995 Mustang GT

How to Repair the Ignition Timing on a 1995 Mustang GT

Slight changes to the ignition timing in your 1995 Mustang are caused as the distributor drive gears on the camshaft and distributor shaft wear and the timing chain stretches. Over time, these changes can cause a variety of engine performance problems, including loss of power, loss of fuel economy and increased emissions. Repairing the ignition timing is a normal part of the tune-up procedure, and the procedure will restore the engine to peak performance.

Instructions

    1

    Start the engine and allow it to run to operating temperature. Place the transmission in "Park," if the Mustang is equipped with an automatic transmission, or "Neutral," if it is equipped with the 5-speed manual transmission.Turn the engine off when it reaches normal operating temperature.

    2

    Bock the rear wheels with wheel chocks. Apply the parking brake firmly. Turn off all the accessories (such as the heater/air conditioning and head lights).

    3

    Remove the "SPOUT" connector located on the wiring harness on the passenger side of the engine compartment, near the strut tower. The "SPOUT" connector is a small, gray plug installed in an electrical connector that is taped to the wiring harness.

    4

    Clip the timing light pick-up cable around the number one spark plug wire -- the front plug wire found on passenger side of the engine. Clip the timing light power wires to the battery.

    5

    Start the engine and check the timing. From the passenger side of the fan shroud, aim the timing light at the harmonic balancer located behind the crankshaft pulley. Observe which mark on the balancer the pointer (located above the balancer) is pointing at. Factory timing for the 1995 Mustang GT is 10 degrees before top dead center (BTDC).

    6

    Loosen the 13-mm distributor hold-down bolt -- located at the base of the distributor -- 1/2-turn, using a distributor wrench. Rotate the distributor slowly, until the timing pointer aligns with the 10 BTDC mark on the balancer. Tighten the distributor hold-down bolt.

    7

    Recheck the timing to make sure the distributor did not move when the hold-down bolt was tightened. Turn off the engine. Reinstall the "SPOUT" connector. Disconnect the timing light. Test drive the Mustang to verify if runs correctly.