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Weird cold start

Discussion in '4th Gen 4Runners (2003-2009)' started by Mav77, Mar 4, 2016.

  1. Mar 4, 2016 at 1:51 PM
    #1
    Mav77

    Mav77 [OP] New Member

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    Marty
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    I just bought a 2003 sport edition last week. This weekend I drove from south Texas to Austin and about half way I stopped, put gas then when I started it up it got hot within seconds... But stayed normal all during driving so I was confused. Ive got a new radiator and a new water pump already and just replaced the thermostat today. Now all of a sudden when it first starts the truck shakes really bad, blows grey smoke and sounds like shit for about a minute or so then idles back to normal and sounds normal again without the smoke. All I've owned is toyotas and I've never encountered this problem before so I'm not quite sure if you guys have had this same sorta thing happen or if I should suck up my pride and just take it to Toyota...? Any advice?

    Also, the Trac and VSC lights both stay on constantly. Not sure what that's all about.
     
  2. Mar 4, 2016 at 1:52 PM
    #2
    wnelax04sr5

    wnelax04sr5 Moderator Staff Member

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    do you have a check engine light? any codes? id be concerned theres coolant where there shouldn't be
     
  3. Mar 4, 2016 at 1:54 PM
    #3
    Mav77

    Mav77 [OP] New Member

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    Yeah check engine light stays on. Only code it pulls is about the exhaust. My Tacoma had the same thing and it was just a slight leak. Among installing the new thermostat I flushed the system and everything seemed to flow perfectly. Oil is clean as well so I'm not sure of any places coolant would be going
     
  4. Mar 4, 2016 at 7:45 PM
    #4
    wnelax04sr5

    wnelax04sr5 Moderator Staff Member

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    weird, symptoms point to a head gasket issue but it could possibly be a sensor issue
     
  5. Mar 6, 2016 at 8:12 AM
    #5
    RonT4R

    RonT4R New Member

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    Also check your catalytic converter..... It might be creating too much back pressure.:notsure:
     
  6. Mar 6, 2016 at 10:34 AM
    #6
    T-Rex266

    T-Rex266 Moderator Staff Member

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    A guy on a Tundra FB page had the traction light on continuously (similar to VSC)
    He said he never felt anything wrong with the vehicle, but turns out he lost compression in 2 seals.
     
  7. Feb 6, 2017 at 8:31 AM
    #7
    dking2004sr5

    dking2004sr5 New Member

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    my engine light was on and vsc and trac, tightened gas cap, all gone, try it. i might be wrong so don't bash me :)
     

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