sputtering engine
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Joined: Aug 2014
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sputtering engine
on my 1992 f150 5L i had to go to town and the drive there went normal. i was inside for about 40 minutes and then when i tried driving home i noticed a weird sputtering while idling through a parking lot. its done it in the past but quit after a bit so i ignored it. then i was accelerating up a hill and noticed i had no power and the at low rpm it was missing really bad. mechanic told me to replace the fuel filter, it was over 2 years old since i never thought to, and i did. its still doing it after holding the accelorator down for a minute or two and driving it back and forth where i was parked. tomorrow im going to get a fuel pressure gauge and test it. i know its supposed to read around 35-45 psi, but im worried it may be something worse. i can do a pump easily enough.
what does it sound like to you guys? the mech took for a drive for a few miles and it doesnt miss at cruisng speeds around 50-60 mph. but if going slow up a hill it loses power and speed way to the point i have it floored in 2nd. like trying to go up a hill in a 2nd gen ranger in 4th gear.
what does it sound like to you guys? the mech took for a drive for a few miles and it doesnt miss at cruisng speeds around 50-60 mph. but if going slow up a hill it loses power and speed way to the point i have it floored in 2nd. like trying to go up a hill in a 2nd gen ranger in 4th gear.
Lead Driver
Joined: Jul 2007
Posts: 7,868
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From: Rhode Island
So you'll never buy another Autolite because you had one $4 sparkplug crack? So what? Anything mass produced can fail. I've seen sparkplugs from every single brand fail in various ways.
Also, you realize Autolite and Ford Motorcraft sparkplugs are made side-by-side in the same factory, right?
Also, you realize Autolite and Ford Motorcraft sparkplugs are made side-by-side in the same factory, right?
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Fleet Mechanic
Joined: Jan 2013
Posts: 1,305
Likes: 8
also, consider the possibility that you may have cracked the plug yourself during installation (i'm surprised it hasn't happened to me, actually).
anyways, good job on a proper diagnosis and fix, rather than wildly tossing parts at it ... which seems to be the norm these days.
anyways, good job on a proper diagnosis and fix, rather than wildly tossing parts at it ... which seems to be the norm these days.
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