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99 f550 7.3 no power

Discussion in 'Ford Trucks' started by beam, Nov 5, 2009.

  1. beam

    beam Senior Member
    from pa
    Messages: 314

    bought a used 99 f-550 7.3 diesel auto and it seems like it has no power when loaded checked air and looks okay any other ideas it only has 44000 miles on it
  2. clark lawn

    clark lawn PlowSite.com Addict
    from NE ohio
    Messages: 1,233

    when u say loadedhow much is a load?
  3. sno commander

    sno commander PlowSite.com Addict
    from ct
    Messages: 1,063

    sounds like a normal 7.3 to me:p j/k
    have you tried a new cps, there only like 30 bucks and you can use your old one as a spare
  4. cold_and_tired

    cold_and_tired PlowSite.com Addict
    Messages: 1,247

    Could be any number of things.

    Does the turbo seem to be providing any boost? If not, check all of the boots from the turbo to the intercooler and back to the manifold.

    Any particular speed or rpm range that seems better or worse?

    More info would be helpful.
  5. beam

    beam Senior Member
    from pa
    Messages: 314

    got a code 603 internal control module any ideas
  6. kah68

    kah68 Senior Member
    Messages: 238

    Yeah sell it to me! Sorry...:laughing: