1992 chevy lumina 3.1 liter, what causes cold air to blow when heater is on

Asked by Glenn Nov 13, 2013 at 03:21 PM about the 1992 Chevrolet Lumina Euro Sedan FWD

Question type: Maintenance & Repair

heater blows cold air in park and idling inany temp. setting., but when driving car blows hot air. What could be the likely causes?

2 Answers
45

karol2011 answered 11 years ago

I had a similar problem with a 1992 Lumina Euro 3.1. The problem was the thermostat.

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