Engine Chugging while Coasting

Discussion in '2005 - 2015 Toyota Tacoma' started by Will Evans, Jan 4, 2019.

  1. Will Evans

    Will Evans Well-Known Member

    Hi Guys,

    When driving my truck around 80-90km/h and if I let off the gas and begin to coast, the engine starts to make a chugging like noise. Also, I have been getting about 80% of my usual mileage. I have had the vehicle for about 30,000 miles and have not changed the spark plugs and that is what I believe is the issue. My truck also seems a bit more sluggish than usual.

    Has anyone ever ran into a similar issue? Any input is appreciated.

    Will
     
    texasred likes this.
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  3. B-Man

    B-Man Well-Known Member

    Quality of fuel? I wouldn't think spark plugs would be bad at 30K.
     
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  4. OR17TRD

    OR17TRD Well-Known Member

    Sounds like it’s time for a tune-up.
    The noise at 50-55mph I’d have to hear.
     
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  5. tony45

    tony45 Active Member

    spark plugs can’t not be the problem. Take it to the dealership and let them look at it. I have never change spark plugs under 50k miles , always at 100k and no problems.
     
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  6. tony45

    tony45 Active Member

    Fuel could be the problem / dirty fuel filter m/b
     
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  7. Bojangles

    Bojangles Well-Known Member

    Let's hope not... That's not fun unless u get a remote filter kit.
    The sock does get debris in it fairly quickly and many even have had some steel curls stuck in the sock (think drill shavings).
     
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  8. Bogunn

    Bogunn Well-Known Member

    Sounds like you need a general tune up maybe. But that’s the beauty of a warranty. Take it to the dealership before your bumper to bumper is up.
     
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  9. OP
    Will Evans

    Will Evans Well-Known Member

    Well I got the truck when it had 170K on it and now i'm up to 225K. I think the sluggishness is a separate issue. My Check Engine light came on and I got the P0420 code. I believe the driver side catalytic converter is partially blocked from the temperature test I did. There is about a 150°F difference between the inlet and outlet on the catalytic converter.

    I honestly think it's my drive shaft causing the vibrations. I've had issues with it before and after soaking it in SeaFoam the truck rode incredibly smooth. I lubed the U joints as much as possible but it did not help this time. Right now it still does the harmonic vibration in OD @ 1400-1800 RPM when on a decelerating coast (letting of the gas) between 80-100km/h. There also seems to be more of a steady vibration when at constant speed in the 90-110km/h range.

    Two more months until I get my frame replaced. Maybe I should replace the drive shaft too? How can I tell if its worn out?

    Will
     
    Last edited: Jan 25, 2019
    texasred likes this.
  10. OR17TRD

    OR17TRD Well-Known Member

    Grab the shaft by the U joint and try to wiggle it up and down if it has play in it it’s bad of it doesn’t wiggle it should be good.
     
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  11. texasred

    texasred Well-Known Member

    Wiggle it all around. Try to turn the driveshaft. Any play should be suspect.
     
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  12. OR17TRD

    OR17TRD Well-Known Member

    Especially since it’s already been lubed up.
     
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  13. Bojangles

    Bojangles Well-Known Member

    Lmfao
     
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  14. Bogunn

    Bogunn Well-Known Member

    This is very questionable as to whether or not it belongs on this thread or in a PM between you and @4wd
     
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  15. texasred

    texasred Well-Known Member

     
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  16. OR17TRD

    OR17TRD Well-Known Member

    Where is that old man o_O
    Hope he’s doing ok.
     
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  17. kp.taco

    kp.taco Well-Known Member

    Yeah me too.. hey @4wd you out there man???
     
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  18. OR17TRD

    OR17TRD Well-Known Member

    He’s like beatlejuice you’ve got to say it three times
    @4wd
    @4wd
    @4wd
     
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  19. kp.taco

    kp.taco Well-Known Member

    Careful. We don't want that guy running around in here.
     
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  20. OP
    Will Evans

    Will Evans Well-Known Member

    Getting the U-Joints replaced today. Let's hope they're the problem [fingers crossed]
     
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  21. OP
    Will Evans

    Will Evans Well-Known Member

    Yup one of the U-joints was seized and the others were worn pretty bad. Fortunately no damage done to the drive shaft. Now just to get my frame replaced ;)
     
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