1990 Ford Thunderbird Repair Question
Ford Thunderbird Spark Problem
Refer to Vehicle Emission Control Information (VECI) decal for spark plug and gap specifications.
Spark Plug Part Number for a 3.8L EFI engine: AWSF-44C
Spark Plug Part Number for a 3.8L EFI S/C engine: AWSF-34PP (early built vehicles with the Supercharged engine had double platinum tip spark plugs which were identified with AWSF-34 PT. ASWF-34 PP is the correct replacement).
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.054 is where i set them.
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