idle problems

  1. GEN 3 SHO FAN

    Unstable idle : not the IAC valve

    Hi, Some times ago, I was working on the brakes while it was started and I had often the idle going up and down. I knew the trouble comes when the engine is hot most of the time but not that much. While working, the fans kicked in and at this exact moment, the idle trouble starts too... I...
  2. marshallma0504

    Concerning noises at idle and 1st gear.

    Hello, this is a new thread related to my last thread titled “new turbo.” At the end I started talking about I have had and continue to have a metallic slap/rattle noise at idle both cold and hot, but it is much more noticeable lately when the car is cold after replacing the turbo (the extra...
  3. J

    Surging/bucking while driving

    Hello, I have a 1990 sho with 180,000 miles. For what it’s worth it say in a field for a decade or two. I have replaced radiator, thermostat, coil, plugs, battery, cleaned the intake, new iac, I believe it’s a new maf but I can’t remember. Since I got it, it starts first time, it idles great...
  4. J

    Vacuum leak help

    I've got a 97 SHO that has been great to me. But a few weeks ago the a/c decided to cut out on me and the car has started to idle oddly, sometimes it'll idle at 1500-2000 rpm and sometimes it will surge from 500-1000. I started looking around the engine bay and found a broken vacuum line right...
  5. B

    haven't found any threads to answer questions I have concerning oil can light at idle, or cold air

    Hello all. Have 2011 SHO, that has started to get worse with 2 issues. 1st at an idle (park or drive), the oilcan illuminates in message center. But disappears with a tap on the gas, only to return when at idle again. Only does it during colder months, after car has been driven for 10-15 mins...

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