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overdrive and fourth gear

Discussion in 'Towing' started by thanospro98, Apr 15, 2010.

  1. Apr 15, 2010 at 1:07 PM
    #1
    thanospro98

    thanospro98 [OP] New Member

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    I am a 08 Double Cab off rd. auto tranny with tow package Tacoma owner 47,000 miles, and after spending the day reading the post's here I must say I feel very happy about the purchase. My question..When towing the pontoon(2700lbsTW of tandem trailer/motor/boat) obviously I start in 4th but after reaching cruising speed on relatively flat ground is it ok to shift her into OD then going back to 4th when it starts getting hilly?
     
  2. Apr 15, 2010 at 1:12 PM
    #2
    SC4333

    SC4333 Well-Known Member

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    Grant
    San Antonio, TX
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    SOLD!
    First off welcome to TW. Secondly, with a load that light, you shouldn't have much trouble maintaining speed on level ground in OD. Like you said yourself, when it comes to towing in hilly areas, it would be best to slap it in the appropriate gear as to not labor the engine and more importantly, overheat the transmission.

    Your truck comes equipped with the towing package and therefore has a trans cooler which will also help keep your trans temps to a minimum.
     
  3. Apr 15, 2010 at 1:17 PM
    #3
    borderbrat

    borderbrat Watching Chris4x4 o.O

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    If you notice your truck downshifting alot just to maintain a speed then lock it in 4 otherwise I think you're fine in D
     
  4. Apr 15, 2010 at 1:34 PM
    #4
    thanospro98

    thanospro98 [OP] New Member

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    Thanks for the help.
     
  5. May 8, 2010 at 5:23 PM
    #5
    Lunercrab

    Lunercrab AKA "06tacosport"

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    Beth
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    Sorry to bring up an old thread but I was curious as well. I towed for the first time with my 2010 auto. I have a pop up that weighs around 1400lbs. On straight highway if I kept in 4th my rpms were about 2500 at about 60-65 but the truck sounded really wanted to "shift" and was on the louder side. When I had it in overdrive the rpms dropped down to about 1500 and the truck was so much quieter. I was under the impression the over drive was a no no when towing. But I'm guessing on straight highway with a light load overdrive would be better for the engine and mpgs?
     
  6. May 8, 2010 at 8:09 PM
    #6
    1980

    1980 Well-Known Member

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    With a 1400 pound trailer and the towing package you are only at 21% of your rated towing capacity. The manual says to tow in Drive; if the computer detects too much strain it will downshift for you. I don't specifically know what my fully-loaded utility trailer weighs but I have hauled a lot of stuff in it and I've towed it all over the place, even on 1500 mile trips with the truck in Drive and no problems.
     
  7. May 28, 2010 at 7:00 AM
    #7
    dfltil

    dfltil New Member

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    Don
    Dunnellon Florida
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    My 07 doesn't have overdrive only drive. There is nothing to shift down from drive. The dealer says that's ok and not-to-worry about the transmission shifting down. Any feedback?
     
  8. May 28, 2010 at 12:42 PM
    #8
    borderbrat

    borderbrat Watching Chris4x4 o.O

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    drive is an overdrive as the final ratio if higher than 1:1
     
  9. May 30, 2010 at 8:44 PM
    #9
    Isthatahemi

    Isthatahemi Well-Known Member

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    I always wonder if I should be putting it in 4th, when it locks and un-locks. I hope that this is factored in when Toyota programs the trans. Then again....
     
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