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Oh my! I was referring to the auto stop/start button on the dash. Here in KY where it gets 90 with 90% humidity, I sometimes hit the button on the dash which keeps the engine running and the compressor spinning and the fan blowing while I'm sitting out a light. 'Cause if it stops, the compressor is not spinning and the fan dies away to a faint breeze and it gets steamy real quick! Yes, when the engine dies, the a/c no longer works!
I have concerns about this also. I will post a definitive report soon. My 2018 should be in within the next 2 weeks, and Phoenix AZ is still running 100 degrees. I had asked the dealer about this feature, his response was "if your running max cool, it will not turn off". Since moving here in 1972, for 9 months of the year, Max Cool has been ON in every vehicle that I drive ! I would of thought that Big Foot would know since he lists Gold Canyon as his location, but I think he only comes here in the winter time. What Phoenican's call a "Snow Bird".
Actually, Mr. and Mrs. Big-Foot are changing their state of residence to AZ where we live for little more than 6 months a year. Minnesota is our spring-summer home.
Put about 120 miles on the truck today and played a little stop-start emergency scenario.
Foot on the brake, dead stop. Engine shuts off. Then QUICK jumped on the gas and you know what - in the time it took to get my right foot off the brake and onto the gas, she was running and hauling the mail...
Frankly - I just don't see it as a problem.
I guess my only concern may be accelerated starter wear - and - that concern is only minor.
Oh my! I was referring to the auto stop/start button on the dash. Here in KY where it gets 90 with 90% humidity, I sometimes hit the button on the dash which keeps the engine running and the compressor spinning and the fan blowing while I'm sitting out a light. 'Cause if it stops, the compressor is not spinning and the fan dies away to a faint breeze and it gets steamy real quick! Yes, when the engine dies, the a/c no longer works!
Even in vehicles without start/stop, the A/C compressor cycles on and off.
Start your car/truck and watch the A/C compressor when it's on. The magnetic clutches will kick on and off depending on demand.
On most vehicles, it's the fan setting that determines how often the A/C comes on. On climate controlled vehicles, it's in that computer..... (Body Computer?)
The last vehicles I can remember that ran the A/C all the time were some old Chrysler products and their York Compressors.
They were known to need a lot of maintenance, as in -- Replacements.