Duramax Scan Tools

Hello,

Am interested in Duramax scan tools for both OBD and injection system. Can you recommend any?

Have been having trouble with significant, but intermittent, vibration at idle when waiting for traffic light, etc. Disappears with engine acceleration while stopped. Doesn't occur when driving. Engine at operating temperature (weather has been >90, as much as 110 here).

John

Sorry for the delayed response. I would look for a genuine Tech 2. I have not shopped for these for a while, but they are more or less obsolete to the technicians these days so should be able to score a decent price.