EdGs
Senior Member
My '15 SLT will tap upon startup after every short-trip, unless I hold RPM's at about 2k for 10-15 seconds before turning it off after the short-trip.I don't think that this brief tick/tap at startup is actually a lubrication issue, but rather a hydraulic one. Sounds like a lifter is just bleeding down over time in your case if you've narrowed it down to only doing it after sitting. I also don't think that this brief tick is really all that big a deal. Not ideal for sure, but it is what it is.
Mine can sit for several days and not tick at startup, but if I start it cold and just move it across the driveway etc then shut it down it will tick/tap at the next startup even if it's only a few minutes later. If I hold revs to build oil pressure for 10-15 seconds it won't do it.
It has done this EVER since I got her with 28,600 miles in Sept. Of '17.
She's inching up on 174,000 miles as I write this.
Believe me, I cringe whenever I hear it tap, because it sounds like sh*t for a few seconds. But if I do the hold rpm thing it does not happen.
Last edited: