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1999 F150 P0304 des...
 
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1999 F150 P0304 despite new wires, plugs & coils

  

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1999 Ford F150 XL 4.6L SOHC Triton V8 176,000,auto, 2wd.

Had to do a lot of work on this one. Sat for a year before I got it. Replaced all 4 cats, oxygen sensors, plugs, wires, coil packs, tension pulley and serpentine belt. Only have 1000 miles on since then. Now getting P0304. Cylinder 4 misfire. I've also had to put in 2 quarts of oil in 1500 miles. Any thoughts? Thanks! 


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It’s time to do a wet & dry compression test on your engine & pray that cylinder no. 4 is still healthy.

Watch Scotty’s video on how to fix a misfiring engine.


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