Ignition Coil - Possible Damage From Antitheft Devices

Article No. 85-13-9

IGNITION COIL - POSSIBLE DAMAGE FROM ANTI-THEFT DEVICES

FORD 1982-85 ESCORT, MUSTANG, THUNDERBIRD, CROWN VICTORIA, 1983-85 LTD, 1984-85 TEMPO

LINCOLN-MERCURY 1982-85 LYNX, CAPRI, COUGAR, GRAND MARQUIS, CONTINENTAL, LINCOLN TOWN CAR, 1983-85 MARQUIS, 1984-85 TOPAZ, MARK VII

LIGHT TRUCK T.B.D.

CALIBRATIONS: All With T.F.I. (Thick Film Ignition)

WARNING: This modification is authorized only for the listed engines. Performing this modification on other engine calibrations is unauthorized and could create liability under applicable federal or local laws.

Figure 5 - Wiring Information - Ignition Coil:

When installing an anti-theft device that grounds the negative side of the ignition coil, a ballast resistance wire (D7AZ-12250-A) must be installed between the coil and grounding device as shown in Figure 5. This will prevent damage to the coil without interfering with the function of the grounding device. Failure to do this on a TFI ignition system may result in damage to the ignition coil due to the large current flow (20 amps) which results.
PART NUMBER PART NAME CLASS

D7AZ-12250-A Ballast Resistor BCC

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: "INFORMATION ONLY"