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.
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HOMESERVICE MANUALSMERCURY1982COLONY PARK V8-302 5.0L VIN F 2-BBLREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSRECALLSRECALL - EMISSION CONTROL SYSTEM MODIFICATIONVEHICLES INVOLVED, CONDITION & CORRECTION
1982 Mercury Colony Park V8-302 5.0L VIN F 2-bbl
Vehicles Involved, Condition & Correction
1982 Mercury Colony Park V8-302 5.0L VIN F 2-bblSECTION Vehicles Involved, Condition & Correction
VEHICLES INVOLVED
All 4.2L and 5.0L engine-equipped Ford LTD and Mercury Marquis vehicles manufactured during the 1981 and 1982-model years having the following engine calibrations and engine codes:
MODEL CALIBRATION ENGINE
YEAR ENGINE CODES CODES
1981 4.2L 1-18U-R00 BK-886-AA
5.0L 1-20A-R00 BK-306/308-AA
1-20A-R01 BK-306/308-AB
BK-324-AA
1-20B-R01 BK-312/316-AB
1-20N-R10 TK-308-AA (Calif)
1981 4.2L 1-18U-R00 CJ-887-AA
CK-878/888-AA
2-18U-R10 CJ-887-AB
CK-878/888-AB
2-18U-R11 CJ-887-AC
CK-878/888-AC
5.0L 1-20N-R10 2J-346-AA
2K-318/340/324-AA UK-340-AA
DESCRIPTION OF CONDITION AND CORRECTION
In-use studies conducted by the Environmental Protection Agency show that some of the described vehicles may be emitting unacceptable emissions levels. To correct this condition, the following service procedures are to be performed on all returned vehicles.
^ All 1981-model 49-State 5.0L engine-equipped vehicles will be inspected for exhaust gas recirculation (EGR) valve function. Non-functioning valves will be replaced.
^ All vehicles will have a vacuum switch assembly adjusted to a new setting.
^ Certain engine calibrations will require either the replacement of existing vacuum retard delay valves or installation of such valves in the air control valve and/or air bypass valve vacuum hoses.
^ All serviced vehicles will require installation of Authorized Modifications decals. Vehicles having new vacuum retard delay valves installed must also have new Vehicle Emission Control Information (VECI) decals. The VECI decals for vehicles involved in this action are being sent directly to the owners. Owners are requested to bring the decals with their vehicles when this service is scheduled to the performed.
Each VECI decal will have a vehicle identification number (VIN) printed on it. If it is necessary to get additional decals, contact your FPSD District Office and provide the VIN for each vehicle requiring a decal.
^ All service stock of certain vacuum switch assemblies is to be returned for credit. Refer to RETURN OF DEALER SERVICE STOCK in this bulletin for instructions.
RENDER: 1.0x
NO RELATED
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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.