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Engine Temp gets hot when towing

Discussion in '2nd Gen. Tacomas (2005-2015)' started by steveoh, May 15, 2012.

  1. May 16, 2012 at 2:49 PM
    #21
    medic2230

    medic2230 @Koditten Pirate Radio member #002

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    I towed a boat a lot bigger than that with mine with 5 guys in the cab and 300 lbs in the bed and the temp gauge never budged from the middle. I towed that setup over 200 miles.
     
  2. May 16, 2012 at 2:52 PM
    #22
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    The temp guage reaches the middle portion, and stays there from 125*, up to 210*.
     
  3. May 16, 2012 at 4:21 PM
    #23
    maineah

    maineah Well-Known Member

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    I did say it was hot I guess I should have said pull over but up to that point it mostly is not. 220 is not overly hot any more it's fairly normal for a modern pressurized system.
     
  4. May 16, 2012 at 7:52 PM
    #24
    steveoh

    steveoh [OP] Well-Known Member

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    I have ~60 thousand miles on my truck and do not use synthetic oil. I should also mention I live and tow in utah wyoming and idaho. I'm not sure what the tow package consists of, but when I bought the car I had the dealership throw on the hitch and electrical. So if that's the tow package then yes - otherwise no.
     
  5. May 17, 2012 at 5:04 AM
    #25
    damnfingers

    damnfingers Well-Known Member

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    Tow package, at least for the 2011 and 2012 Tacomas, consists of a larger alternator, oil cooler and larger battery...not sure what it would have been in 2008.
     
  6. May 17, 2012 at 5:29 AM
    #26
    Disco850

    Disco850 Well-Known Member

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  7. May 17, 2012 at 9:32 AM
    #27
    BTO

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    That kinda sucks. Any way to make it more linear?
     
  8. May 17, 2012 at 9:37 AM
    #28
    elmo7

    elmo7 Easily Replaceable Member

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    What are your temps when you're towing your oven? Does it matter if it's on broil or bake? :D
     
  9. May 17, 2012 at 10:16 AM
    #29
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Not that I know of.

    HA!! :p
     
  10. May 17, 2012 at 10:23 AM
    #30
    OnTheTrail

    OnTheTrail Well-Known Member

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    Maybe the thermostat is bad. It could not be opening completely or at the correct temp. There could also be a leak somewhere and the system doesn't hold pressure.
     
  11. May 17, 2012 at 10:35 AM
    #31
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    In previous Toyota models it was as simple as unsoldering one of the resistors to make that gauge float with temps. I had no reason to remove dashboard but I would guess its exactly the same setup
     
  12. May 17, 2012 at 10:46 AM
    #32
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    Here are some of the things to check do.
    First full towing package on 05-08 consisted of
    1. Tow hitch with wire harness
    2. Brake controller wiring
    3. Engine oil cooler
    4. Denso 130 amp alternator
    5. 27F battery
    6. Transmission cooler (only on automatic)

    Checks
    1. Is coolant fresh and at proper level with out air trapped inside engine
    2 Is thermostat opening at correct temperature
    3. Is fan clutch operating properly
    4. Is radiator clean inside out.
    5. Is temp sensor is operating properly (you may not have hot engine only temp sensor showing one.
    6. Is shroud around radiator fitting properly
    7. Is serpentine belt and tensioner are working correctly (water pump is powered by it)
    8. Is Water pump working (highly unlikely but those wings could separate from the shaft and it will not pump water anymore.

    Things to try
    1. Mobil 1 synthetic oil 5w-30 with 2 qt of 0w-40 if you want to try
    2. Wash radiator, Change coolant
    3. Check thermostat, water pump.
     
  13. May 18, 2012 at 8:42 AM
    #33
    a89aries

    a89aries Well-Known Member

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    Even doing some extreme towing with my taco, extended WOT uphill pulls I can seem to get it about 193 on my scanguage. Normally sits at 187.
     
  14. May 19, 2012 at 5:45 PM
    #34
    steveoh

    steveoh [OP] Well-Known Member

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    got my gauge today. running errands it was hovering around 190. i'll have to play more, i only entered 17.5 gallon tank and 4 liter engine.
     
  15. May 19, 2012 at 6:08 PM
    #35
    MonkeyProof

    MonkeyProof Power Top

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    My temp always stays the same when I tow the MonkeyCrawler..ofton I have to go up the Cajon Pass which is steep and filled with idiots who are barely doing 50 mph slowing my momentum down. Having. 4.56 gears help but I the tires that weigh 88lbs each takes away that benefit. I should look into getting a scan gauge just to see what The temps actually are..

    mr9v5y_580c69ded74e5216309429df762d1f583e445d44.jpg
    i23aj8_4d0a7b0fed0dbfe2e821b9527eed49f2b05c016d.jpg
     
  16. May 19, 2012 at 7:21 PM
    #36
    extremachn1

    extremachn1 I am an asshole, deal with it!

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    I would, i am willing to bet even though your gauge is stain still towing over el cajon pass you at 210+ if not 220+. I always hit 215+ going over the pass in-between yuma and cali.
     
  17. May 19, 2012 at 7:52 PM
    #37
    monkeyface

    monkeyface Douchebag, or just douche if we're friends

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    Yeah, the factory temp gauge should never budge from normal temp even in extreme conditions. That's what thermostats are for. If you overheat, you have a problem that a new gauge won't fix.
     
  18. May 19, 2012 at 8:18 PM
    #38
    monkeyface

    monkeyface Douchebag, or just douche if we're friends

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    Just pointing out some facts here, not pickiing on your post, just wanted to point out some facts.

    180 F is a normal water temp for a motor, that's what motors are regulated at. 212 F is boiling point for water at sea level, the boiling point gets lower the more altitude you're at.

    Therefore, your thermostat has to open up more to let more water through to keep the motor from boiling over as the altitude increases. If you're overheating with a Taco, you have a thermostat or radiator problem. Taco's have a big enough radiator to handle anything, so if there's an overheating trbl, it's mechanically related, not design related.
     
  19. May 19, 2012 at 8:57 PM
    #39
    extremachn1

    extremachn1 I am an asshole, deal with it!

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    Of your pushing a lot of boost underheavy load in extremley hot conditions while running the AC which is my problem although I havent overheated as of yet. The truck gets hot but it never overheats. It never gets above 225, even offroading.
     
  20. May 19, 2012 at 9:11 PM
    #40
    monkeyface

    monkeyface Douchebag, or just douche if we're friends

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    225 seems like that's pushing the coolant and cooling system to the edge. But that's good the Taco can handle that, you must have kept your system clean and flushed.
     

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