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3406E Miss

Discussion in 'Trucks [ Eighteen Wheelers ]' started by sailboatjim, Apr 8, 2015.

Page 2 of 4
  1. Apr 9, 2015 #11
    little cat 500

    little cat 500 Road Train Member

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    Jan 17, 2010
    Abbottstown PA
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    shifting it like a sportscar not the best on it ether lol
     
    little cat 500, Apr 9, 2015
    little cat 500, Apr 9, 2015
    #11
    Caterpillar Cowboy Thanks this.
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  3. Apr 9, 2015 #12
    sailboatjim

    sailboatjim Light Load Member

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    Aug 27, 2014
    Boston, Mass
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    Ya, you are right. I didn't think about it being a Cat when I was dogging it.
    You got be real gentle with them like Chevrolet's or they break.
    Honestly, I would rather have a Series 60 Detroit in it any day of the week over this yellow motor.
     
    sailboatjim, Apr 9, 2015
    sailboatjim, Apr 9, 2015
    #12
  4. Apr 9, 2015 #13
    OldHasBeen

    OldHasBeen Road Train Member

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    In 1980 and 1981 I drove a Western Star with a 3406 in it for about 100,000 miles. Never had any trouble with it and I was use to driving trucks with Cummins engines.


    Actually you should never dog any engine, to many cowboys behind the wheels of 18 wheelers dogging them.
     
    OldHasBeen, Apr 9, 2015
    OldHasBeen, Apr 9, 2015
    #13
  5. Apr 9, 2015 #14
    T800H

    T800H Medium Load Member

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    Apr 2, 2010
    The Keys
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    the guy asked a question and it was crucified before anyone answer, look I'm not the best driver out there but I like to rev my engine to the top every now and then.

    and yes Cats are low rpm engine, but they do go to over 2100 for a reason, I like to know that my engine revs to the top the same way it runs at the bottom and I much rather run an engine at higher rpms than to lugged, you would do more damage lugging it than running close to the top

    Jim what you have is a flutter and it could be a lot of things, all related to fuel and some times a pain in the neck to find it.

    good luck.

    I'm working on mine with the same problem.
     
    T800H, Apr 9, 2015
    T800H, Apr 9, 2015
    #14
    billandlori Thanks this.
  7. Apr 9, 2015 #15
    OldHasBeen

    OldHasBeen Road Train Member

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    Well, back in the 80's the 3406 I drove that was new would pull 2200 RPM, just about what Cummins would from the factory. Back them they were not low RMP engines.

    Do not believe I could stand one pulling down to 1000 to 1100 RPM, back in that day if you did that your engine would be ruined, whether it was a Cat or a Cummins.
     
    OldHasBeen, Apr 9, 2015
    OldHasBeen, Apr 9, 2015
    #15
    T800H and rank Thank this.
  8. Apr 10, 2015 #16
    sailboatjim

    sailboatjim Light Load Member

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    Aug 27, 2014
    Boston, Mass
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    In my defense I own it and it was only going about 20 mph and loosing at the time. Yee haw
    hehehehe
    true story
     
    sailboatjim, Apr 10, 2015
    sailboatjim, Apr 10, 2015
    #16
  9. Apr 10, 2015 #17
    sailboatjim

    sailboatjim Light Load Member

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    Aug 27, 2014
    Boston, Mass
    0

    Thank you. I will check that.
     
    sailboatjim, Apr 10, 2015
    sailboatjim, Apr 10, 2015
    #17
  10. Apr 15, 2015 #18
    sailboatjim

    sailboatjim Light Load Member

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    Aug 27, 2014
    Boston, Mass
    0
    Took a little 1200 mile trip this week and it turns out it was fuel filters that were stopping up that was causing that miss after the shift.

    Changed them on the road and it ran better than ever BUT it was starting to do the same thing again at the end of the trip.

    So now I'm wondering if there was something put in the tank or maybe the hoses are coming apart inside and clogging the filters?

    Maybe water? I only ran about 170 gallons through it so it got good fuel mileage.

    This truck has not been run at all over the last few years. It ran good when it was right.

    Surely whatever is causing the problem is getting caught in the first filter, right?

    I don't think I can afford to change the filters with original cat filters once a week.
     
    sailboatjim, Apr 15, 2015
    sailboatjim, Apr 15, 2015
    #18
  11. Apr 15, 2015 #19
    T800H

    T800H Medium Load Member

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    Apr 2, 2010
    The Keys
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    Jim you may have a hair line crack on the filter base, when fuel is cool motor tends to work better for many reasons but when hot is thinner and also aluminum base will expand and make the crack even wider and sucking more air than cooler, thus making engine run rough.

    see if there's a coincidence if misses when you've been driving for several hours and fuel level is getting to the lower portion of the tank, making the cycles of fuel hotter and hotter.

    good luck.
     
    T800H, Apr 15, 2015
    T800H, Apr 15, 2015
    #19
  12. Apr 16, 2015 #20
    sailboatjim

    sailboatjim Light Load Member

    292
    173
    Aug 27, 2014
    Boston, Mass
    0

    Good point, I'll do it.

    What I noticed is this.

    I talked to you guys about it being at high rpm only.

    Then drove about 400 miles and noticed that it was starting to to do it at a lower rpm. (1800 instead of 2100)

    Stopped at a truck stop and got a little dinner and rest (2 hours) and when I left there it would barely run at all.

    Sometimes making it to 1500 without cutting out.

    Stopped and changed filters and it ran like brand new.

    Went about 300 more miles and noticed that it's doing it again at about 1800 like it's stopping up again.

    I'll check that filter base.

    I'm going to change the hoses from the fuel tank to the motor too.

    The truck got great fuel mileage for a low powered kitty. I was very pleased with that.
     
    sailboatjim, Apr 16, 2015
    sailboatjim, Apr 16, 2015
    #20
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