2004 Chevrolet Astro Repair Question
Topics covered: Sensor, Map sensor , Window.
Mileage: 22,800 miles.
Mileage: 22,800 miles.
Asked on May 26, 2012
Why do i get better milage with ac on?
04 astro AWD 4.3 vortec csfi auto trans 228,000 miles. I drive about 200 miles a day (windows always up). I normally use about 13 gallond fuel a day. The weather got warm I started running the ac. I now use about 10 gallons a day ac on. Any idea what is going on?
Asked by ROBERTBRENDAAnswer
Replied on May 26, 2012
About the only thing that can affect this if the weather is very humid as well, the extra moisture and with the air being a little more denser can affect economy to a small degree but not to the extent you report, you may have noticed that on cool damp nights the car will run smoother and get a little better economy, same thing is going on.
Replied on May 26, 2012
density of the air is critical map sensor and o2 sensors are very sensitive to atomspheric conditions.
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