Hi I'm new here and don't know too much in terms of trucks and had a question. I bought a, what the Ford dealer said, was a used 1999 ford f150 5.4 V8 4WD super cab. I just noticed putting new speakers in the other day that the sticker on the rear swing door that the manufacturing date sticker said 11/98. That worries me because last month I replaced the spark plugs (which was a pain and took me about an hour; having to take the fuel rails off and everything to get to them) and told the guy at the auto zone store that it was a 1999 and gave him the rest of the specs. He gave me the plugs that matched that vehicle. Im wondering how bad it is that I did that or if the 98 and 99 use the same plugs or if its not a big deal. I noticed that the plugs I put in (bosch platinum +4's) had a lot more threads than the ones I pulled out (motorcraft platinums) However the trucks been running fine with no misfires or rough ideling or anything. Nothing but smooth acceleration and no hesitation. Running better than the ones before. Any recommendations?
have the same problem?
Wednesday, February 11th, 2009 AT 5:22 PM