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bad gas mileage

Discussion in '1st Gen. Tacomas (1995-2004)' started by petrov72, Mar 17, 2012.

  1. Mar 17, 2012 at 9:24 PM
    #1
    petrov72

    petrov72 [OP] New Member

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    Hello to everyone!
    I just sold my Frontier Crew Cab v6 and get a 2003 Tacoma 2.4l , regular cab to make better gas mileage. After the second tank with the small Tacoma I am not happy with the results. 190-200 ml in the city(15mpg), and 18-19 on the freeway. There is nothing wrong whith it, works good looks good. I got almost same as Frontier, exept the week engine, small cab, and ... I do not no if this is normal but, is there something that I can do to improve the mpg??
     
  2. Mar 17, 2012 at 10:07 PM
    #2
    Yamaha Dave

    Yamaha Dave Well-Known Member

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    You do realize that the highest EPA MPG estimate on a 2003 Tacoma 2.4l mileage is est. 17/20 mpg? Did you not research this before you bought the truck?
     
  3. Mar 17, 2012 at 11:27 PM
    #3
    Blackdawg

    Blackdawg Dr. Frankenstein

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    could be worse..i get 10mpg with my V6 and 33'' tires..
     
  4. Mar 18, 2012 at 6:23 AM
    #4
    TacomaJPP

    TacomaJPP To secure peace, is to prepare for war

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    When I had my 97 2.7, with 32x11.50's, I got about 22-23 MPGs.

    Have you tuned it up?

    Fuel filter, plugs, wires, PCV, air filter, tire pressure, TB cleaning, etc?
     
  5. Mar 18, 2012 at 6:32 AM
    #5
    RAT PRODUCTS

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    Actually it's 20/25 mpg. So he isn't even in the ballpark. Definitely needs a tuneup.

    My 96 2.4l got a consistent 25-26 mpg.
     
  6. Mar 18, 2012 at 9:45 AM
    #6
    Cvd2312

    Cvd2312 Well-Known Member

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    Wow really? 10 mpg? That's pretty damn bad, even with 33's
     
  7. Mar 18, 2012 at 10:21 AM
    #7
    petrov72

    petrov72 [OP] New Member

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    Thanks for help! I have not done enithing on it yet. I am going to.
    I did, fueleconomy Tacoma 2003 2.4l, 2wd, automatic trans. 19/23/21 mpg.
    What mpg you get with the same engine? The car has 80K on it. I push it to match may be.
     
  8. Mar 18, 2012 at 11:14 AM
    #8
    Blackdawg

    Blackdawg Dr. Frankenstein

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    nah, pretty normal actually for 33x12.5s. all city driving tho too.
     
  9. Mar 18, 2012 at 11:21 AM
    #9
    garrettnb

    garrettnb Canadian Ambassador

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    "Originally Posted by Cvd2312
    Wow really? 10 mpg? That's pretty damn bad, even with 33's
    nah, pretty normal actually for 33x12.5s. all city driving tho too."

    I ride on 33x12.5 on a 4 inch lift all. Ity driving and I get around 15mpg. You should look into something going on.
     
  10. Mar 18, 2012 at 11:25 AM
    #10
    Blackdawg

    Blackdawg Dr. Frankenstein

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    Im not too worried. Know several members in the same boat. Could be tons of things. I have already done lots of the tuning stuff. Fuel filter is next, thats it tho.
     
  11. Mar 19, 2012 at 6:57 AM
    #11
    Yamaha Dave

    Yamaha Dave Well-Known Member

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    Actually we're both right.


    20/25 is for 2WD, manual 5-speed, 2.4L


    17/20 is for 4WD, auto, 2.4L
     
  12. Mar 19, 2012 at 8:41 AM
    #12
    TacoMX

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    My 2.7 w/ 33's and stock gears (4.10s) gets 17-18 in the city :p:p:p:p:p I get around 22 on the highway. But that is driving SUPER conservatively. IE..shifting at 2k or under, using 5th gear in 40mph+, down shifting everywhere to cut off the injectors, and keeping highway speeds to no faster than 65 mph.

    You just dont know how to drive :D:D




    To the OP: Just tune up the truck; plugs, wires, airfilter, clean MAF, fuel filter, and maybe clean the throttle body....then you will be back up to normal mileage


    fixed
     
  13. Mar 19, 2012 at 8:43 AM
    #13
    Blackdawg

    Blackdawg Dr. Frankenstein

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    Hey! I tried a whole tank under 2k just like you said..nothing..

    so..ive gone back to me street driver ways :D haha
     
  14. Mar 19, 2012 at 8:45 AM
    #14
    TacoMX

    TacoMX TW's Official anti body-lift pundit

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    well then your truck is fucked up :D:D

    have you tried cleaning the throttle body and such? Doing everything that I have listed in my previous post got me from 14mpg to 17-18mpg.
     
  15. Mar 19, 2012 at 8:46 AM
    #15
    Blackdawg

    Blackdawg Dr. Frankenstein

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    everything but the TB and Fuel filter.

    getting the Filter done here this week tho i think.

    was getting 17-18 city and 19-22 hwy with my 31s lol
     
  16. Mar 19, 2012 at 5:33 PM
    #16
    TacoMX

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    hmmm...clean your TB for sure. I promise it will help :cool:

    And check your exhaust mani's for cracks.

    An exhaust leak that close to your motor can kill mileage and power.
     
  17. Apr 2, 2012 at 12:56 PM
    #17
    tmt411

    tmt411 Active Member

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    I have heard ( and this could be BS) that Toyota fuel filter are desinged to never need replacment. My Cousin has a 2000 Tundra and had the dealer do a bunch of repairs one of them was wanting the FF replaced. The Toy Tech said there is no need but my Cuz insisted on replacemnet 3 weeks later he needed new injectors. Any body hear of this ?:cool:
     
  18. Apr 2, 2012 at 1:58 PM
    #18
    TacoMX

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    I have heard of that, but idk...its a cheap filter...worth it to replace it.

    And the injectors going bad afterwards...totally unrelated..how could replacing a filter that will allow a cleaner supply of fuel be fed hurt anything?
     
  19. Jun 8, 2014 at 7:33 PM
    #19
    austynstaco

    austynstaco Member

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    Bad O2 sensor got me about 9 mpg Yay hah just replaced took a long time for the engine light to come on mpg went from about 20 to 13 to 9
     
  20. Jun 26, 2014 at 8:06 AM
    #20
    JAGER91374

    JAGER91374 Well-Known Member

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    Look at the front O2 sensor. When mine went bad it caused poor mileage and a check engine light with a PO420 error. Noting actually pointed at the front O2 sensor.

    When this was bad I was getting 10-11 MPG in mixed driving. After replacement the mileage was back to 18-19.
     

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