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  1. #1
    Junior Member
    Join Date
    May 2018
    Name
    Joe
    Location
    US
    Posts
    1

    2009 fx4 5.4. Loss of power while driving

    Hi. In need of help. My truck starts and will drive. But then either stall or bog down and have no power. It dont throw any codes either. I replaced the throttle position sensor. And its still doing the same thing.
    Any help appreciated
    Thanks
    Joe

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  2. #2
    Junior Member
    Join Date
    Jun 2018
    Name
    Josh G
    Location
    Illinois
    Posts
    2
    I bought a 2007 F150 Supercrew and put a full tank of fuel and a bottle on injector cleaner and now my engine light is on as well as every now and then it idles rough. any help

  3. #3
    Member Moosee1955's Avatar
    Join Date
    Aug 2018
    Name
    stevelandau
    Location
    Daly City
    Posts
    49
    Fuel injector cleaner does not work, period. Their are so few on the market that do any good. If you narrow down that the injectors are the problem, have them professionally cleaned or replaced. The first thing I'd recommend is do a fuel pressure test. We need to know if your pump is pumping, and filter and line up to the injectors is strong/clear. Second have your catalytic converters checked at a shop. They'll pull the front 02 sensors and check for back pressure, and possible blockage. Report back what you find.

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