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rhonda
rhonda 10/7/2012
1999 Ford Ranger XLT 6Cyl4.0L - Engine
why does left-hand back spark plugkeep fouling
2 Answers
  • rick
    rick 10/8/2012
    Depends on what the plug looks like . Most the time if it's just one like you say then it's fuel fouling . Which would point to a injector going bad and over fueling that hole .
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  • gearbox
    gearbox 10/13/2012
    Also some rangers are known for head gasket issues
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