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Whitish Smoke, Harsh Idle

Discussion in '1st Gen. Tacomas (1995-2004)' started by tr0gd0r, Mar 23, 2011.

  1. Mar 23, 2011 at 7:20 PM
    #1
    tr0gd0r

    tr0gd0r [OP] Well-Known Member

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    I have a 99 Tacoma 3.4L with about 170K miles.

    One day I was driving and it was -10 degrees outside, so I naturally had the heat on full blast. Then I noticed the vents started blowing cold instead of hot air and my engine was hotter than I had ever seen it before (nearing the top of the gauge). I shut the engine off and figured my coolant was low. I knew the coolant had a small leak and it was going to cost too much to fix it. I had to put about 1 gallon of coolant in the radiator to fill it up.

    Since then it has started to act up. Whenever it is started from being cold, the idle is really rough and the truck shakes a bit until it is warmed up. Also, while the engine is cold the exhaust is white like water vapor until its warmed up, but it emits a lot more white exhaust than normal.

    Any ideas what this could be. I haven't taken it in to get looked at because I am low on cash. The truck doesn't seem to be low on power at all.
     
  2. Mar 24, 2011 at 9:55 AM
    #2
    tr0gd0r

    tr0gd0r [OP] Well-Known Member

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    TRD Catback Exhaust - 265/75/16 BFG KM2s
  3. Mar 24, 2011 at 1:25 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    Do you have a check engine light?
     
  4. Mar 24, 2011 at 1:39 PM
    #4
    tr0gd0r

    tr0gd0r [OP] Well-Known Member

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    No Check engine light unfortunately, otherwise I would have just used a code scanner
     
  5. Mar 24, 2011 at 1:56 PM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Check your vacuum lines, and spark plugs.
     
  6. Mar 24, 2011 at 1:59 PM
    #6
    tr0gd0r

    tr0gd0r [OP] Well-Known Member

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    What should I be looking for on spark plugs and vacuum lines?
     
  7. Mar 24, 2011 at 3:05 PM
    #7
    SRQ TACO

    SRQ TACO "You've Got Red on You"

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    loose lines or leaks and bad spark plugs or loose ones.
     
  8. Mar 24, 2011 at 3:09 PM
    #8
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    I'm going to go with a HG issue.
     
  9. Mar 24, 2011 at 3:30 PM
    #9
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Yeah......I think your right.
     
  10. Mar 24, 2011 at 3:31 PM
    #10
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Pull the radiator cap and start it up.
     
  11. Mar 24, 2011 at 3:32 PM
    #11
    tr0gd0r

    tr0gd0r [OP] Well-Known Member

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    Was this a joke? What would that do?

    Spark plugs all look okay.
     
  12. Mar 24, 2011 at 3:34 PM
    #12
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Nope, sometimes if its bad enough or depending on where the leak is, it will force air into the coolant channels and out the radiator. It will bubble or churn harshly. My 88 shot it up to the hood.
     
  13. Mar 24, 2011 at 5:06 PM
    #13
    TawcoTime

    TawcoTime Taco Verde

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    ^^^^
    What he said. Keep checking the coolant level. I'll bet it is slowly going down. Consistent white vapor out the exhaust usually indicates coolant being drawn through the engine - normally from a head gasket leak.
     
  14. Mar 24, 2011 at 9:16 PM
    #14
    TacoBlitz

    TacoBlitz Well-Known Member

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    dang sorry man hopefuly its not as serious as a bad head gasket. good luck
     
  15. Mar 24, 2011 at 9:53 PM
    #15
    Dlead

    Dlead Well-Known Member

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    it also sounds like it could be an burnt valve.....
     
  16. Apr 5, 2011 at 8:47 PM
    #16
    tr0gd0r

    tr0gd0r [OP] Well-Known Member

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    Dealership said it is a head gasket leak. Is this very common in the 3.4L motor?

    Also, I was quoted $2400 for the fix, does that sound reasonable?
     
  17. Apr 5, 2011 at 9:05 PM
    #17
    Toyota Tacoma

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    same thing happened to a friend of mine, turned out being a head gasket unfortunately
     
  18. Apr 5, 2011 at 9:06 PM
    #18
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    That price seems pretty high. Shop around
     
  19. Apr 6, 2011 at 3:26 AM
    #19
    SkyHighTacoma

    SkyHighTacoma Josh

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    Or do it yourself for the price of a new HG gasket. ;)
     
  20. Apr 6, 2011 at 3:28 AM
    #20
    SkyHighTacoma

    SkyHighTacoma Josh

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    If I remeber correctly only the 95.5-late 97 3.4l had bad headgaskets, but they were all fixed by 98.
     
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