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Fuel Injector Flush?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by jrb451, Aug 18, 2015.

  1. jrb451

    jrb451 Junior Member

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    Had my 75,000 mile service today. They guy recommended I have one of these? I declined. It's not on the maintenance schedule. Any one have this done? Recommend it?

    TIA
     
  2. jdenenberg

    jdenenberg EE Professor

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    I have almost 4 times 75k miles on my 2004 and it's injectors are fine so unless you have been using fly-by-night gasoline, injector service is not required.

    JeffD
     
  3. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    No and No.
    Good job on catching the fact that it's not on the maintenance schedule.

    Generally speaking, fuel injectors don't get fodded out.
    There are only four of them, and one would presume that if they start getting plugged up, then the dealer wouldn't have to tell you that you have a problem. Things like fuel efficiency, and even poorer acceleration would tell you.

    Also....this isn't something that you want a dealer to do.
    Ever.

    For most dealers, intake system cleaning takes one of several forms:
    1. Placebo method:
    Bill the customer.

    2. Bottle method:
    Open can of $10 fuel system cleaner. Put some in the tank. Bill the customer $150.

    3. Spray and Pray method:
    Use the little plastic straw than comes with the $10 fuel cleaner and spray into the intake. Bill the client $175

    4. Inverted colonoscopy method:
    Use a machine that kinda looks like what you imagine is present in a doctor's office in the "gastro" or "procto" department. Spray solvent into the intake system and hope it does not damage the customer's catalytic converter.

    Here's the one that they almost NEVER use:
    5. CORRECT method:
    a. Carefully remove MAFS and clean with either $5 specalty cleaner or equivelent.
    b. Remove Throttle Body. Use about 2 ounces of TB cleaner on a rag and clean the assembly.
    c. Use the $10 bottle of fuel system cleaner in the fuel tank.
    d. Reassemble intake system and test drive.

    Cost: $15-20, plus 0.5-1.0 hours of labor.


    Good Luck!
     
    #3 ETC(SS), Aug 18, 2015
    Last edited: Aug 18, 2015
  4. bisco

    bisco cookie crumbler

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