I have a 1990 Ford Thunderbird and i'm changing the spark plug can you please tell me the proper cap! Thank You.
Thursday, November 15th, 2012 AT 8:23 PM
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).