When warm the idle is around 600 RPM which is not too bad in the winter but in summer with the A/C on it is too low. Dealer says it should be around 750 RPM. Also says it cannot be adjusted. All that they can do is run diagnostics to determine which component is not working up to par and replace it. Seems like the long way to go when it is running fine. Plus, dealer wants $110 to diagnose the low idle.
Any comments or suggestions on an easier way to get it up to 750 RPM while in gear. Neutral or Park are fine.
