Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1987 Ford Mustang L4-140 2.3L SOHCFACTORY OEM SERVICE PROCEDURE
Ignition Control Module: Service and Repair
Fig. 9 Exploded view of TFI-IV ignition system distributor:
Removal
1. Remove distributor as described under ``Distributor, Replace.''
2. Remove 2 module attaching screws, Fig. 9.
3. Slide right side of module down distributor mounting flange, then back up to disengage module terminals from connector in distributor base. Remove module from distributor. Do not attempt to remove module before moving toward distributor flange, as connector pins will be damaged.
Installation
1. Apply a 1/32 inch coating of silicone grease D7ZA-19A331-A or equivalent to metal base of module.
2. Position module on distributor mounting flange.
3. Carefully position module toward distributor base to securely engage the 3 distributor connector pins.
4. Install 2 module attaching screws.
5. Install distributor as described under ``Distributor, Replace.''
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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