waste of time, or worth it?

Larso1 · 11-04-2016, 04:18 PM

Quote:

Originally Posted by kenchan

I can maybe sort of probably not understand in 'on' mode for fuel pump and all but why acc?

True. I don't see how ACC would help anything either

jchammond · 11-03-2016, 05:43 PM

i do it if i'm just getting the milage.

P's_Z · 11-03-2016, 07:36 PM

Quote:

Originally Posted by ZeeBabar

. My understanding is that warming up the engine before revving it up too high helps longevity.

Quote:

Originally Posted by N1SMOZ

Waste of time. Let the car idle until you hear the engine quiet down. Keep a light foot until the car is fully warmed up.

Edit: I usually wait until about 2-3 dots before driving off under 60°F.

Idle till engine quiets down, drive with a soft foot and wait till oil temp reaches 180 before flooring it

I have heard about people that do what the OP mentions, but never had a solid explanation as to why.

Larso1 · 11-03-2016, 08:10 PM

It does help to do this in my '97 Maxima. As was mentioned above, if the car has been sitting an hour or more, it takes time for the fuel pump to pressurize the system and start it up. But otherwise, it starts right up. I notice this only on my Maxima. Our Acura, 370z and Ford F-150 always start right up with no delay required. YMMV. Hmmm, maybe I should check my fuel filter...ya think?

/Angelo350Z/ · 11-04-2016, 06:04 PM

Quote:

Originally Posted by jamtinge

i am really surprised by the responses i am getting.

I would fully understand if you guys say it is not a necessary step, but

has no one really heard about putting the acc mode on first before the engine startup?

Quote:

Originally Posted by SouthArk370Z

Where did you hear that? It's the inrush current that causes the most damage (why incandescent light bulbs frequently burn out when you turn them on) and that's going to happen every time you power up. Unlike an ICE or vacuum tubes, solid state electronics do not have to warm up.

Quote:

Originally Posted by SouthArk370Z

Been driving/working on cars and reading about them for over 40 years and never heard that.

I've seen cars where you needed to wait a few seconds before starting but, as mentioned above, this was due to glow plugs warming up, fuel pumps priming, etc, and had nothing to do with the electrical system.

SouthArk370Z nailed it. Glow plugs in diesel engine-powered vehicles need to cycle before startup. The only logical reason I could see a gas engine needing a few seconds in the ACC mode is if the vehicle is equipped with an electric oil primer to prolong engine life. Do those even exist?

2011 Nismo#91 · 11-04-2016, 07:22 AM

Quote:

Originally Posted by jamtinge

Hi Guys,
so that the car gets some electricity first, then turn the engine on.

Electricity travels many thousands of miles per second you really don't need to wait for it to get where it needs to be, it's much faster than you pushing any buttons.

370zBoyz · 11-04-2016, 04:32 PM

never heard of doing such a thing before..just start the car up

11-03-2016, 05:43 PM	#2 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 59 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684396	i do it if i'm just getting the milage. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

11-03-2016, 08:10 PM	#4 (permalink)
Larso1 Base Member Join Date: Nov 2015 Location: Pueblo CO Posts: 98 Drives: 12 Nissan 370Z T M6 Rep Power: 11	It does help to do this in my '97 Maxima. As was mentioned above, if the car has been sitting an hour or more, it takes time for the fuel pump to pressurize the system and start it up. But otherwise, it starts right up. I notice this only on my Maxima. Our Acura, 370z and Ford F-150 always start right up with no delay required. YMMV. Hmmm, maybe I should check my fuel filter...ya think? Last edited by Larso1; 11-03-2016 at 08:22 PM.

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11-04-2016, 04:32 PM	#7 (permalink)
370zBoyz Base Member Join Date: Oct 2013 Location: Driver seat Posts: 207 Drives: Nismo Rep Power: 7215	never heard of doing such a thing before..just start the car up