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View Full Version : 2002 chevy trailblazer sputer when i turn heater on help please?

mkeim2002
04-04-2009, 02:34 AM
when its idling runs smooth as long as heater an ac are of when heater is turned on it surges an some times stalls
golden rider
04-04-2009, 03:53 AM
It either has a vacuum leak or your due a tune-up.