Brand new truck seems to have a skip

2015 Tacoma, 4.0, 16K miles

Ever since it was new, Ive observed this, but I didnt want to be an alarmist. When Im sitting at an idle for an extended period, (3-4 minutes) I feel the SLIGHTEST skip in the idle. Almost like a single miss. Just a quick RRRRRRRrRRRRRRRRRRrRRRRRRRRR. Its almost unnoticeable, but seeing how I play with hot rods for a hobby, Im very critical of a base idle. There are no trouble codes, no running issues, nothing to indicate there an issue. Its not predictable and I cant replicate it. Only happens once every 45-60 seconds. You just have to sit and let it idle for a bit and as soon as it happens you wont have even noticed it, just kind of look up and say 'huh'....and then back to whatever I was doing.

Does anyone have this same issue? Theres NO way the dealer i going to try and trouble shoot this without any other symptoms. (If its even an issue)

 

a /c compressor kicking in?

 

AC compressor, power steering pressure switch

 

Well, that makes total sense.
What is the power steering pressure switch and why would it kick in at idle?

 

My 2012 four cylinder 2.7L does this too since it was new with 6 miles on the odometer. It is exactly as you described. It has nothing to do with the AC Clutch or any power steering.

You wouldn't notice it if you weren't looking for it... No issues and I'm at 29K miles.