[BluinSC]

Mine fires right up. But it hasn't gotten really cold in SC yet.

We'll see what happens in Jan and Feb.

[raptor5244]

4.365 cranks on a cold start at 73 degrees, 78% humidity and partly cloudy skies. Warm start takes 1.62 cranks at 83 degrees and 71% humidity. Hot start barely cranks because the starter tends to suffer from heat soak.

[CAM-FIFTY]

It roared up in first push of the button this morning (38F), haven't started it in 5 days.

[KingstonsDad]

Mine is a 2ss M6 and it does take a couple of seconds for the first start of a cold day, but I usually put my foot on the brake pedal, hit the start button, let everything come to life (gauges, info center, etc), then push the clutch and start button to ignite. I had that habit with all of my FI vehicles to get fuel from the tank to the injectors and have continued that routine with my 2ss.

[c4racer]

Hmm. Ya maybe that's a better way to start it.

[glenB]

Originally Posted by cigarfan

Yup, you're on point. Duh

Don't be a hater

[Co2SS]

On a 6M SS if you press the start button for 5 seconds without pushing the clutch you will hear the fuel system pressurize. Release the start button and press it again WITH the clutch this time and the car will turn over right away, even in really cold Colorado temps. Otherwise it does take 4-7 cranks when cold. I would assume the A8 will function the same if you press start for 5 seconds without foot on brake.

[vtirocz]

Originally Posted by Glen e

Yes, DI has to pressurize.....

Then why does GM's 3.6L DI engine start right away. I think the 6.2's startability coiuld be optimized.

[vtirocz]

Originally Posted by Co2SS

On a 6M SS if you press the start button for 5 seconds without pushing the clutch you will hear the fuel system pressurize. Release the start button and press it again WITH the clutch this time and the car will turn over right away, even in really cold Colorado temps. Otherwise it does take 4-7 cranks when cold. I would assume the A8 will function the same if you press start for 5 seconds without foot on brake.

The high pressure pump is not moving until the engine is spinning though. That's the low pressure pump you're hearing. If that helps, GM should set it up to pressurize on the low pressure side every time the driver's door is opened, so the driver does not have to go through any extra steps.

[craigss50]

Originally Posted by vtirocz

The high pressure pump is not moving until the engine is spinning though. That's the low pressure pump you're hearing. If that helps, GM should set it up to pressurize on the low pressure side every time the driver's door is opened, so the driver does not have to go through any extra steps.

Or since it seems to be time related since last start every time after 1 or 2 hours since I open and close my door often when cleaning. That would save the pump some wear.

[cigarfan]

Originally Posted by glenB

Don't be a hater

Hater? No...you're right about it. Relax...