Stump the Chump (new member)

[Bosco123]

Have an '07 XLT 4x4 144,000 on it, recently had hvac line explode over cyclinders 1-4 causing cyclinder 3 misfire. Dealership replaced line, and "cleaned" and re-installed plugs 1-4 after that when I accelerate hard I have hard hesitation through about 55 mph BUT when I take off normally no hesitation runs smoothe. I replaced my coils 1-4 with some BWD's no joy. Thinking my plugs might be bad, any install the Champion 7989 plugs yet? Any ideas to help? Thanks

Eric

 

[treycool94]

welcome and holy shit 144 miles on an 07 mine only has like 60....

 

[walnuts4x4]

welcome... but I don;t have much experience with the 3v motors... so i'm really no help

 

[GAINMOB]

welcome to the site...

 

[FloorIt]

Welcome Bosco123.

 

[sgtowing]

Welcome

Sent from my DROID BIONIC using Tapatalk

 

[BakerEdition]

Welcome to the family Bosco...IMO...stick with the Motorcraft replacement.

 

[Bosco123]

Thanks for the warm and fuzzy, by the way I replaced my top of the line motor craft spark plugs with champions dual platinum 7989 plugs and bwd ignition coils. I feel the difference alread, I've driven about 50 miles on them so far the engine is very responsive is purring just fine.

 

[timberwoof]

Welcome.

 

[KC Dave]

I have a 2nd Gen, BUT, if I were to guess, I'd say some of the Freon/oil may have been sucked into the intake via the normal air inlet.. It may have gummed up the MAF sensor. Might try cleaning it first.