Sluggish on cold starts

[JayGA]

I noticed that if I hadn't run my engine for a day or two, it seems to really "lug" driving out of a parking spot uphill. As in I give it a little gas but it's still barely moving.

And this is only on "cold" starts.

Do you think that's just because the turbo is not engaging on cold starts?

I usually give it about a minute to warm up but sometimes I just crank it up buckle my seatbelt and go.

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[fossil]

You have cold starts in Georgia?
I would suspect that while you can start and go the computer wants to see some small measure of engine heat before releasing beast mode.

 

[Dueces]

Accurate. The factory tuning doesn't want people going ham on a cold engine. So until you reach warmup temp, it will limit power. This is a good thing. You shouldn't be WOT until the vehicle is at full operating temp, or 170Deg+.

 

[paneubert]

An observation I have made when using remote start from inside my house on cold mornings (and looking out to the driveway thru a window to ensure the truck started) is that I don't see ANY exhaust/vapor cloud coming out of the tailpipe until about 1 minute after startup. It goes from nothing at all seeming to come out of the tailpipe (I know some is, but visually I see nothing) to a full/visible exhaust output literally within a 1-2 second timeframe (once it starts to visually show, it is almost instant).

I assume the truck is conserving/recycling the majority of the engine heat to heat up faster in that first minute. May be related.

 

[JayGA]

You have cold starts in Georgia?
I would suspect that while you can start and go the computer wants to see some small measure of engine heat before releasing beast mode.

I knew someone was going to say that. Even if it's 85 and 85% humidity it would still take a minute for the engine to warm up.

Which is a long minute uphill.

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