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F-150 sputtering

Tiny
JOSHTRULSON
  • MEMBER
  • 1999 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 151,000 MILES
My 1999 F150 started sputtering quite a bit. It is not reading any OBD codes. I changed the air filter, cleaned the MAF sensor with an approved spray, and replaced my in line fuel filter. Still doing it, particularly under torque, but at start up and idle as well. Please help.
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Saturday, January 15th, 2011 AT 1:34 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
I'm surprised it didn't set a code. It sounds like a bad coil pack or the boot on the coil pack that attaches to the plug could be arcing. If the light still hasn't come on, check fuel pump pressure. Also, if the light has come on and then has gone off, check for codes. Many times the light will come on when there is a misfire and when it stops, the light goes off.
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Wednesday, February 23rd, 2011 AT 7:47 PM

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