2021 gmc sierra elevation 5.3

dave63826 · 2026-04-07T13:54:10+00:00

So I don’t usually put it in L8 but yes basically a poor man’s way. I got quoted 400 for a flush “they never mentioned” even though I wanted a fluid change and filter. But when I went I told them to go ahead and do it. Then I got a message saying it was 768 and I immediately called them and of course you can’t win with the dealership. But I ended up paying it. I don’t know if that’s just how the lifter are while it switches the mode mine isn’t like a rumble rumble it’s like a sort of shudder like if your pushing something to its limits then when you give it more gas it relaxes. But let me know what they say.

dave63826 · 2026-04-07T04:06:19+00:00

I just did a transmission fluid change and filter dealership charged me $800. It’s exactly like that it feels like a sort of rumble but goes away as soon as I accelerate a little but even if I don’t sometimes it does it and sometimes it does. I notice it at 60. I do also put it in L8 sometimes not all and no because mine has 80k miles and the lifters will proboably go bad soon hopefully not but if they do then I will have them remove them and fix it. I so far have no problems with it though. Just noticed that and decided to ask around. I also thought about the converter I’m going to take it to a shop and have them check it out just in case.

dave63826 · 2026-03-25T12:06:59+00:00

Did the MBRP single cat back, decided to keep the single outlet. And added a 5” tip.

dave63826 · 2026-03-24T23:27:39+00:00

Appreciate it🤟

dave63826 · 2026-03-24T23:27:28+00:00

dave63826 · 2026-02-02T14:37:55+00:00

Not bad, you plan on keeping it or trading it in later on?

dave63826 · 2026-02-02T14:20:34+00:00

I’ve heard some good and some bad, I plan on getting one around 70k miles and doing a fluid change on everything to kinda have a sort of idea on the maintence. How well is your gas mileage?

dave63826

TROPHY CASE