High pitched whining noise when starting?

[Trucko20]

Hey guys, I've had my 2014 for about a month. 20k miles on it. I've noticed that sometimes when I start it up, I get a high-pitched whining noise as the engine attempts to turn over. It always does start with no issue, it just makes this odd noise sometimes. Just wondering if anyone else has experienced this?

[Victory14red]

Mine has a power steering sounding whine when I start it, and if it's really cold out it sounds that way till it's warmed up. I can only assume it's either the vacuum pump or high pressure fuel pump. I wouldn't worry about it too much unless it really concerns you.

[LongrangeLauber]

Sounds like the high pressure fuel pump, I get the same sound on startup

[SouthpawHD]

It's your neighbors whining because they have Rams....

[Trucko20]

From your responses I gather that this is normal. Thanks guys!

[royalkangaroo]

Noticed this on my '15 too. Much different turnover than my 2010. This one has that distinct whine/sharp turnover and sometimes cycles quite a few times before the engine starts. Especially in cold weather or if it's been sitting for more than a day.

[Dnt]

Almost all have a rasp from the oil pump for about a second at startup after sitting for a long while unstarted. Can you record and post the sound?

[antvan21]

I too have been having this issue, I bought my truck new in may of 2016 and about 7 months later, I started to notice a whining noise during cold starts on colder mornings. Now its louder and it does it just about every time I start it. I've took it to the dealership, but of course they can't duplicate it.  Has anyone found a solution yet? It does sound like something to do with the power steering.

Since no one else has posted a video yet, I'll try to get one posted in the next day or two. 

[Fred2113]

I just bought a used 2016 Tahoe LT 5.3. It recently starting making a whining noise like a power steering pump squeak when I turn the engine over. Has anybody had this problem and has it gotten fixed