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Slowing down when letting off accelerator.

Discussion in 'Towing' started by Emil, Jan 26, 2012.

  1. Jan 26, 2012 at 6:04 PM
    #1
    Emil

    Emil [OP] New Tacoma Fan

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    Emil
    Virginia
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    I know that sounds normal, but here's the situation. I towed a 6 x 12 U-haul trailer to Ohio with my 2012, double cab, V6, 4x4 w/ the TRD Sport package. When I hit the mountains in MD/Penn the truck would start to slow down when I took my foot off the accelerator while going down some failrly steep grades. I would have to keep my foot on the accelerator just to maintain 60 or so going downhill. I thought it was maybe the trailer which had hydraulic brakes, but the same thing happenned coming back without pulling anything and while doing about 65-75 mph going downhill. I thought it was maybe some sort of transmission breaking or wind resistance. It didn't try to slow down fast, but most vehicles would have to keep applying the breaks going down fairly steep grades in the mountains to keep from speeding. Emergency breaks weren't "partially on" and I was in Drive in 2H. is that normal?:confused:
     
  2. Jan 26, 2012 at 8:55 PM
    #2
    Jon4x4

    Jon4x4 PEW PEW

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    Uhh duh
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    Because your computer sees that your not using throttle, it sense you are going down hill and will keep the torque convertor locked.
     
  3. Jan 26, 2012 at 8:58 PM
    #3
    bmc52

    bmc52 .

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    Brett
    San Antonio,TX
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    When I first got my taco I thought it was very weird as well.
     
  4. Jan 26, 2012 at 8:59 PM
    #4
    OZ-T

    OZ-T Quite an experience to live in fear , isn't it ?

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    Peter North
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    The truck is engine braking
     
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