1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

White exhaust on a cold start

Discussion in '1st Gen. Tacomas' started by Itisreallycold, Apr 28, 2013.

  1. Itisreallycold

    Itisreallycold [OP] Active Member

    Joined:
    Jan 24, 2013
    Member:
    #95994
    Messages:
    35
    Gender:
    Male
    Minnesnowta
    Vehicle:
    Ol' Rusty
    My 1995 3.4 v6 with 238xxx miles will have a high idle around 1200rpm when I start it up, and will slowly go down to 750 as it warms up. If I engage it into reverse or drive it will drop down to 1000/1100 rpm and still idle high well everything warms up. If it is a cold day the exhaust will be white, but I haven't noticed white exhaust with the warmer weather. When everything is warmed my truck runs like a watch. Would there be white exhaust on a warm day if it was a blown head gasket?
    I'll post some videos and compression test results soon. Other revelant things, I've recently cleaned maf/throttle body/plugs/air filter.
     
  2. worthywads

    worthywads Well-Known Member

    Joined:
    Jun 25, 2011
    Member:
    #58841
    Messages:
    3,407
    Gender:
    Male
    Peoples Republic of Boulder
    Vehicle:
    05 5-lug access I4 Stick, 70 Challenger Vert
    Cold temp shows the moisture in the exhaust, like your breath.

    Hot day not.
     
  3. Rich91710

    Rich91710 Well-Known Member

    Joined:
    Feb 23, 2012
    Member:
    #73470
    Messages:
    16,498
    Gender:
    Male
    First Name:
    Rich
    Los Angeles
    Vehicle:
    08 Base
    Satoshi with FJ badge, factory cruise, factory intermittent wipers, Redline Tuning hood-lift struts, Hellwig Swaybar, Rosen DVD-Nav
    Yup.
    Normal.

    Head gasket would steam on every restart after sitting for a short period and would smell like coolant.
    Bad valve seals would smoke on every restart after sitting for more than a few hours, and would smell like oil.

    The catalytic convertor seriously cools the exhaust and promotes heavy condensation. Every modern vehicle "smokes" on a cold morning until the cat "lights off" and gets up to operating temperature.
     
To Top