Extremely high idle question

Discussion in 'General Motoring' started by stinknugget, Dec 5, 2004.

  1. stinknugget

    stinknugget Guest

    I am wondering why my 2000 SL with 113K miles idles so high. After initial
    warm-up at around 1500-2000 rpm it jumps way up to 3000-3500 once I get
    started driving. I also notice that even at the high idle and driving at
    high speeds, my temperature gauge barely gets to the halfway mark, when it
    used to go to just over the mark every time. Any suggestions?
     
    stinknugget, Dec 5, 2004
    #1
  2. stinknugget

    William Hughes Guest

    I just had a similar problem with my '95 SW2. Turned out to be a bad coolant
    temperature sensor - $8 at AutoZone.
     
    William Hughes, Dec 6, 2004
    #2
  3. stinknugget

    jdoe Guest

    I had the same thing too and replaced the colant sensor. But it didn't help.
    Finally replaced the Automatic Idle Air Control Motor and all is well. Make
    sure you don't have any other suspects like a vacum leak too.
    Larry
     
    jdoe, Dec 6, 2004
    #3
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