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Cold Start Idle Problem !!!!

Discussion in '1st Gen. Tacomas (1995-2004)' started by 3.4v6, Jul 18, 2011.

  1. Jul 18, 2011 at 12:02 PM
    #1
    3.4v6

    3.4v6 [OP] Well-Known Member

    Joined:
    Nov 11, 2008
    Member:
    #10672
    Messages:
    73
    Gender:
    Male
    First Name:
    Jason
    Redwood City
    Vehicle:
    01 pre-runner
    91 octane gasoline
    My truck struggles to idle in the morning when i first start the engine. Usually the idles are high around 1200 rpm at first start up in the morning and drops down to between 500 and 750 once the engine reaches steady state. Now cold start idle is at 500 and slowly moves up. Ive been holding the throttle down a little just so the engine doesn't die. I only have this problem at initial start up, truck starts normal for the rest of the day.

    Anyone have any suggestions to what the problem could be?
     
  2. Jul 18, 2011 at 12:12 PM
    #2
    skytower

    skytower Well-Known Member

    Joined:
    Jun 7, 2010
    Member:
    #38505
    Messages:
    3,221
    Gender:
    Male
    First Name:
    Dave
    virginia
    Vehicle:
    08 Tacoma 4x4
    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    You most likely have a temp sensor problem. Either the coolant or air temp sensor is going.
    I doubt it is your plugs and wires, but it cannot be ruled out. Check them.
     
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