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Bad gas mileage!!! help

Discussion in '1st Gen. Tacomas (1995-2004)' started by Stubbs95tacoma, Jul 18, 2011.

  1. Jul 18, 2011 at 12:43 PM
    #1
    Stubbs95tacoma

    Stubbs95tacoma [OP] Well-Known Member

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    Alright i have a 95 3.4 liter tires are all at the same psi clean air filter oil is changed regularly only 95,000 miles and im getting on average 9.34 mpg this is nottt normal what do i need to do to get it back up?
     
  2. Jul 18, 2011 at 12:45 PM
    #2
    moto932

    moto932 What's the matter, Colonel Sandurz? CHICKEN?

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    plugs, throttle body cleaning, fuel injector cleaner, and a lighter foot for starts
     
  3. Jul 18, 2011 at 12:48 PM
    #3
    Stubbs95tacoma

    Stubbs95tacoma [OP] Well-Known Member

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    ive had a light foot and new plugs last september
     
  4. Jul 18, 2011 at 12:49 PM
    #4
    moto932

    moto932 What's the matter, Colonel Sandurz? CHICKEN?

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    grease your drive shaft, diff oils ok?
     
  5. Jul 18, 2011 at 12:51 PM
    #5
    Stubbs95tacoma

    Stubbs95tacoma [OP] Well-Known Member

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    ill add that to the check list.
    i think im going to take it in and get a new fuel filter and check out the o2 censor.
    Forgot to mention it dosnt have a cat someone stole it its a welded straight pipe no exaust leaks.
     
  6. Jul 18, 2011 at 12:52 PM
    #6
    elytravis

    elytravis Well-Known Member

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    O2 sensor maybe
     
  7. Jul 18, 2011 at 12:53 PM
    #7
    rleeharris

    rleeharris "Old Timer," compliments of 11Taco2.7

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    ^ Probably an excellent next step (O2 and fuel filter)
     
  8. Jul 18, 2011 at 12:54 PM
    #8
    WhatThePho?

    WhatThePho? Greg Graffin 2016

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    The things required to pull bitches
    Get rid of your straight pipes and go back to stock.
     
  9. Jul 18, 2011 at 12:56 PM
    #9
    Stubbs95tacoma

    Stubbs95tacoma [OP] Well-Known Member

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    its just straight pipe where the cat was still has the muffler on it
     
  10. Jul 18, 2011 at 12:56 PM
    #10
    bicklebok

    bicklebok Well-Known Member

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    Dang, I feel good getting my 16-17 now!

    Clean MAF sensor, throttle body, 02 sensor, fuel injection cleaner.

    Do you have a check engine light on for the 02 sensor?
     
  11. Jul 18, 2011 at 12:58 PM
    #11
    Stubbs95tacoma

    Stubbs95tacoma [OP] Well-Known Member

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    nope no check engine light
     
  12. Jul 18, 2011 at 1:18 PM
    #12
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    How's it running? Under 10 mpg unloaded sounds like something is pretty off... Did this happen suddenly or gradually? Also, you sure on your math (not trying to be an ass, just starting with the easy stuff before you go tearing into your truck).
     
  13. Jul 18, 2011 at 1:24 PM
    #13
    WhatThePho?

    WhatThePho? Greg Graffin 2016

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    The things required to pull bitches
    I did the same a while back. Put a track pipe over the cats. Mpg went to shit.
     
  14. Jul 18, 2011 at 1:27 PM
    #14
    Stubbs95tacoma

    Stubbs95tacoma [OP] Well-Known Member

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    yeah ran it down to less than a gallon 5 times and averaged them out and i got the truck in september and the gas mileage was ok then it went down in december mainly because of the snow and 4wd i think and then went up in may to like 15 and then went to absolute shit.
     
  15. Jul 18, 2011 at 1:55 PM
    #15
    moto932

    moto932 What's the matter, Colonel Sandurz? CHICKEN?

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    dont want to run you tank that low. it can damage your fuel pump
     
  16. Jul 18, 2011 at 2:04 PM
    #16
    97yota4wd

    97yota4wd Well-Known Member

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    alot of metal, small engine, decent travel.
    caged, camburg long travel, 50t leafpack (soon to be installed) light rack over cab, 5pt harnesses etc
    x2 and i would think the cat is causing it.... shit idk
     
  17. Jul 18, 2011 at 3:11 PM
    #17
    worthywads

    worthywads Well-Known Member

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    Not really, unless you run the tank dry and keep running the pump the pump will be fine.

    It's the fuel running through it that lubes and cools the pump.
     
  18. Jul 18, 2011 at 4:04 PM
    #18
    devilsalmostfree

    devilsalmostfree Well-Known Member

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    Deck plate mod, intake silencer removed, AFE Pro Dry S Air Filter, debadged, Goodyear Duratracs 265/75R16. Flowmaster knock-off muffler!
    im going with a new fuel filter, r the spark plugs gapped correctly? theres an o2 sensor behind my cat, u may want to find a used cat if possible!
     
  19. Jun 8, 2014 at 7:36 PM
    #19
    austynstaco

    austynstaco Member

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    K&N air filter glass pack muffler.
    O2 SENSOR I was getting a solid 9 mpg and worse took about 2-3 months for a code to pop up was the front o2 on mine same truck
     
  20. Jun 8, 2014 at 7:38 PM
    #20
    austynstaco

    austynstaco Member

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    Check the o2 sensor I have the same truck with the same problem took like 3 months to trigger a code and until it did my mpg kept going down spent about 1100 on gas last month because of this
     
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