How is the compressor turning off any different from pushing the AC button vs turning the car off?
People sure have strange OCDs.
People sure have strange OCDs.
Anyone else turn everything off when you stop the car?
- Thread starter AZjeff
- Start date
Patman
Staff member
I like to turn the AC off because the next time I start up will likely be the next morning and I don’t really need ice cold air blasting on my face when it’s cooler outside anyway.How is the compressor turning off any different from pushing the AC button vs turning the car off?
People sure have strange OCDs.
The concern from OP was leaving the compressor and other items "ON" when starting the car the next time they go in to drive it.How is the compressor turning off any different from pushing the AC button vs turning the car off?
People sure have strange OCDs.
Ok, let’s reverse it then. How is turning the compressor on with the ignition any different than pushing a button?
In a modern car, no difference at all. The computer will run through its startup sequence and engage the compressor when it is ok to do so.
In an older car, the assumption is that the compressor engaged could make it harder to start. I'm not sure if that's true or not, or that if it really matters.
That’s bit me a few times when driving other cars. I got very used to that. The EqEV does have something similar as it doesn’t have a power button but I don’t think it auto locks? Don’t remember, only driven it like a dozen times.
I left one of the work vehicles running for hours (I don’t drive them but have to move them around in the parking lot)… Nissans make a very subtle beep if you abandon them with the car on. I heard it but just figured it was something else.
Thankfully my Tahoe has an actual key so I have yet to do it to that one.
So, the fact that GMs with EPB can’t be set to always engage the parking brake instead of just on an incline drives me nuts.
My Tesla doesn’t count but anytime I drive anything else I always set the parking brake.
When I had the Prologue and when I’ve driven the Equinox EV I always press the parking brake button before letting off the brake after parking and shifting into park.
The problem this presents is if you park on an incline and it automatically engages the parking brake and you press the button manually then you have just turned off the parking brake and because GM EVs use a traditional parking pawl the car rolls and then you get a big clunk when you shift again. I know the car will be fine I just feel bad for it!
So either I need to pay attention or they should have a setting in the infotainment where I can choose to always engage the parking brake upon shifting into park. Then I would just never set it myself and it would avoid this issue.
I know just listening or looking at the screen for the parking brake icon is an option but ADHD and loud music and usually being busy or tired…
It makes no difference at all because even cars from the early 90s that I had, cut accessory power when the ignition was turned to crank.
AZjeff
$50 Site Donor 2023
If that's true then the practice is meaningless but harmless. My concern is being gentle on the 07 Fusion. And as said I like to hear start-up without the fan blasting or radio on.
Nothing annoys me more than going to start the car after sitting through a Colo winter night and the wipers are frozen to the windshield, or trying to push 8" of fresh snow.
I always shut down wipers and have to remind myself to check the switch BEFORE turning the key if I was not the last person to drive the vehicle.
Everything else doesn't really matter.
I always shut down wipers and have to remind myself to check the switch BEFORE turning the key if I was not the last person to drive the vehicle.
Everything else doesn't really matter.
Kestas
Staff member
A turbo spinning at 10,000 rpm will not spool down in a matter of seconds. Turbos are prone to wipe out the plain bearing in extreme cases where the oil stops flowing when they're spinning at high rpm.
I hate this. Get into a customers car thats been locked up in the sun all afternoon. It's 200F in the car and I have to figure out how to get the ac going before I pass out from heat. Extra points if it's a black car thats so hot I can't touch the steering wheel or shifter.
AZjeff
$50 Site Donor 2023
This is an interesting side discussion. When does a turbo spin at 10K rpms? @75 passing on the highway? @ 25 on a residential street going home? Curious because we had a 1.5T Equinox and I never heard the turbo spooling down after shutdown but maybe they don't make any noise?
That's funny, because mine does. Some cars have turbo shaft speed sensor. Mine is displayed on a monitor.
Mine goes to 110,000 rpm under load. Responds quickly to load changes. Idle is ~5k.
To the OP, I like to pull fuses when I park just to make sure.
That's true, but I'm not pulling into my garage with a turbo spinning at all, let alone full speed.
Everything off and turned down. I leave the house at 4:30 am and if I left the radio on, it seems 10 times louder in the morning than it was when I got home the previous afternoon. Plus, I like to drive for a few minutes before any accessories are on just to make sure there are no unusual noises. Of course, that was probably because I was driving a car with 347,000 on the odo. Maybe now that I'm driving a newer vehicle, I'll break some of those old habits.
My S-15 Jimmy developed a quirk towards the end of its stay with me where the wiper would occasionally make one swipe across the windshield when I started it, even though the switch was in the "off" position. I hated having to clean/loosen them without help from the defroster but I didn't want to turn the truck on and risk stripping something in the wiper linkage.
No need in anything modern, the physical controls are simply a request. ECM and various will engage compressor etc when it's safe to do so
Key to left, but I had a turbo I might idle it for a minute.
