Hi horsecity,
When the idling speed is too low, the engine would surge as the compressor is clicking in and out.
As to then acidic smell, it is not possible to ascertain what it is and it is best to get it checked. Quite often we have complaints of bad smell when the blower is first turned on and it usually is from the evaporator.
SPONSORED LINKS
Thursday, June 3rd, 2010 AT 11:47 AM