Runs funny
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Joined: Oct 2009
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Runs funny
hello. i just bought a 86 ford f-150 with a 300 6cyl. i put new plugs and wires in it and it still has a slight miss. it accelerates fine but when your cruising at a chosen speed it feels like its not all there. it stalled at one intersection for me. when it idles it will sputter a bit. can someone tell me what to do next. i dont want to spend hundreds of dollars on it if i dont have to. could it be the coil or distributor. should i just change them both. i dont think it is carberator related. HELP. 
Post Fiend
Joined: Nov 2005
Posts: 7,437
Likes: 4
From: Charles Town, W bygod Va
You might have a vacuum leak or bad valves or... To see if you have a miss pull each plug wire individually and listen for the rpm to drop, if you get one that doesnt change theres your dead cyl. You can check for a lean mixture by cupping your hand or a rag over the carb to richen it up, if the engine smooths out you are lean then I'd check for a vacuum leak
Post Fiend
Joined: Nov 2005
Posts: 7,437
Likes: 4
From: Charles Town, W bygod Va
dry out the inside of the cap and the wires. You can spray the inside of the cap with WD-40 if you've got some.Dont use other penatraing oils, some are flamable and will blow the cap off (saw it once)
