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idle stop solenoid

  1. Troubleshooting
    1978 L250 ac and auto trans just put new carb on. engine now purrs BUT the idle speed rises and falls through a cycle of about 3 minutes very gradually decreasing by about 300 RPMs then climbing back up to about 800 rpms. The AC is Diconnected and the idle stop solenoid is unplugged is...
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