ghorty

OK, I picked it up Friday night, cause: Internal Failure of Vacuum Pump. They replaced the Pump, Belt and Belt Kit. Bulletin #PIT5361C. No oil found in line. Vacuum PSI dropping to -3 PSI. So it looks like I'm good to go. They pressure on the brakes feel good.

When I picked up the rental they were talking to GM on it, and might not get an update until Monday, we will see. I hope it didn't rust in less than a year that I owned the vehicle. And yes, I was ecstatic when they said they replicated the issue. That was the issue with the 2014 Silverado I turned in with the steering vibration. They would not admit they could replicate the issue. I traded the 14 in on this one before the manufacture warranty went out on it.

Just got off the phone, the dealer was able to replicate it today while in the shop and they are talking with GM on the issue. They are giving me a rental until as they dig deeper into the issue. Progress!

It's in the shop right now, the ABS even kicked in as I parked it in the service garage there. Have not heard any follow up yet. Will keep it updated for anyone else who runs into it.

This is all under 20 MPH. I am bringing it back in. I just wanted to check if anyone has heard of the issue before so I could give them better detail than it happens from time to time that ABS kicks in and doesn't throw an error code.

Yes, original tires, all 34-35 psi, 16k miles on the truck so far.

I just started having an issue where my ABS breaks kick in when it shouldn't. I have noticed it happen mostly when backing up or down grade, and then doesn't turn off until I take it out of Drive. I have also had this happen when parking in a dry parking lot, so no reason it should kick in. There are no error codes being generated by the ABS. When it does kick in, I noticed the brake peddle clicks when I press it. Anyone else have this or any ideas what's causing this? 2016 Silverado Z71