05 f150 supercrew 5.4 spark plugs
Bought truck used with 136k on it to replace my 03 supercrew 4.6 that was totaled in a accident on nov 17 [t-boned on drivers side]. Getting code P0420, Catalyst system efficiency below threshold [bank1]. Was told #2 has misfire. Was advised to replace spark plugs. Been reading all the horror stories about these plugs breaking upon removal. Couple Questions, I am in Virginia Beach, Va and was wondering if anyone on here is near my area, that might be able to help me with this because I am busted up a bit from the accident? Also, what are the best reliable replacment plugs for this engine? Read pro's and con's about the Champion #7989, and the Motorcraft SP-515 Thanks in advance for any help with this.
Last edited by rman550; 12-10-2011 at 05:14 PM.
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