kport08

Ha glad to hear - If I had the parts I'd do what 20165.3Eco did. But the white lithium has been holding up well over the past few weeks. Only hear slight ticking after rain/cooler weather, then goes away again. What really needs to happen is GM needs to fix this s*** now that we found their problem

This is awesome!

First two pics are of the steering boot/shaft intersection point. Put a generous amount of white lithium spray grease inside and around the boot. Jonty711 gets the credit for this! Thank you!

All, I put a bunch of lithium in the steering boot yesterday and lo and behold the noise is gone (drove twice today with no noise at all without having to do the lock-to-lock trick). However - I have to mention I did a few other things as well. I took the plastic deflector shield off (right below the engine) and tightened up some screws where the shield connects to a pair of brackets (the metal brackets made a rattle/resonating noise when banging up against it). I also checked the torque on just about every screw/nut &bolt on the entire steering assembly...everything was tight and to spec. One thing that seemed loose was the steering shaft - it felt like there was some play when moving it around. If the noise comes back I'm taking it into the dealer to have the boot replaced and the shaft looked at. So my conclusion is either 1.) the lithium helped or 2.) tightening the "plastic shield" and "attachment bars" did the trick. If the noise comes back I'll keep everyone updated. If anyone else has an update please share!

YES! This is the noise!!

Keep us posted please!!!!!

Not yet...narrowed it down to 1. steering or 2. high pressure vacuum pump (I've read other threads that some have had luck with it/making similar noise/etc.). I tried looking over the steering this past weekend but haven't found anything external that appears to be loose/making the noise (if it's this then it's probably coming from under the tie rod boots or inside the "rack & pinion" piece). I'm taking it to the dealership ASAP next week to have the service department take a look at those two items. I'm going to let them know about the "turning of the wheel" lock-to-lock scenario - I have audio/video recordings of this now. I'm hoping by showing them this they can do a more thorough search/disassembly or full replacement. I will keep looking and testing this week/weekend and report back if found or fixed - if not off to the dealer it goes. I'm not stopping until this crap is fixed! Stay tuned!

I hear you sir, it's definitely exhausting. And I'm in the same boat...there are other things going on with my truck as well...leaf spring creaking noise...interior plastic parts rattling...etc...this thing is 18 months old...with a $50K window sticker?? These trucks aren't built with 100% quality in mind...engineers are taking cheap routes...but not entirely their fault...GM execs have shareholders to appease and they've pushed for new designs in a limited time frame (i.e forcing engineers to cut corners)... Anyways, I'm not giving up yet...I think we're close to a fix for this...lots of things have been ruled out...I'll be working on my "steering" theory over the weekend and will keep y'all update. Anyone taking their truck in keep us posted please. At the end of the day if we don't find a fix (6 months or so) then yes I'll be driving a F-150 pretty soon after haha

Ask them to check anything to do with the electric power steering...the noise goes away when you turn the wheel (see my post yesterday). As 2016LTCC mentioned, it's probably putting pressure on wherever the metallic rattling noise is coming from. Steering: -ties rods/"rack & pinion" pack/steering mounts/bolts/steering shaft/steering shaft boot (which is snug against the break master cylinder - could be making noise)/front suspension & breaks/or anything the steering assembly is touching directly.

Yeah I have had an instance where the noise did returned while driving...so I put the truck in neutral and did the process over again at a red light lol and it went away again

Yes, unfortunately. This is only a temporary fix, an annoying one at that but still a fix. After I leave the truck sitting for a few hours the noise comes back and I have to repeat the process and it goes away.

Thanks for confirming. Then it's has to be the steering shaft/electronic rack & pinion/tie rods/etc...anything to do with steering...I know that's a lot of "ifs" to check off though. Things I've ruled out: -exhaust...from stock headers all the way to the tail pipe (but that flapper value located just before the muffler definitely makes noise during idle but can only be heard outside the truck) -fuel...fuel lines/high pressure pump/injectors (anything to do with fuel feed...others have said no change) -serpentine belt/pulleys...others have had them changed with no change -lifters...others have said the noise returned

Wish I would have replied sooner but I supposes trading in for a Ford might not be a bad idea. Pretty sure I have located where the noise is coming from - try this to see if the noise goes away: 1. Put in neutral and rev engine around 1,000 - 1,5000 rpm (you should be able to here it ticking) 2. Turn steering wheel all the way to the left while in that rpm range (haven't tried turning right yet) and you'll note that the noise disappears 3. Let off the gas and bring to an idle then turn wheel back to center 4. Noise should be gone when accelerating both in v4 and v8 mode The noise completely goes away when i do this - whether doing city driving or on the highway, it's completely gone...There are only two causes that would make it go away, 1) the steering boot is letting the noise in and reseals itself after turning the wheel or 2) the steering assembly - from the boot all the way to the tie rods - is making the noise somewhere. Makes sense when going over bumps that the noise goes away...something has to be loose/rattling down there. The steering assembly and components are all electronic now (new design) and does not run off of engine power (i.e power steering pump - simultaneously affecting any other pulley along the serpentine belt for that matter). I believe the noise gets louder due to engine vibration (i.e. rattling the steering assembly which is located right under the engine). It's a wild guess but thought I'd share. Let me know if the above works for any of you all. I will try to figure this shit out this weekend and post a pic/video if noise is located and stopped for good.

I've had the same noise issue since about 5,000 miles, currently at 19 and some change. Dealer visit found nothing wrong and said all noises were normal - well it's not normal otherwise people wouldn't be complaining about it! Anyways...2017 Silverado 5.3L - Faint engine "tick" or light "rattling" or "marble" noise under acceleration. The noise is most noticeable in v4 mode under acceleration and gets louder as you continue to push the pedal down further. Once it pops into v8 mode the sound either disappears or is reduced. Long turns on the highway the noise disappears. Hit a bump or pothole the noise disappears. Drive for an extended period of time (20-30 mins) the noise disappears. My first guess was the serpentine belt but ruled that one out (I had a ticking noise in my '08 Silverado and it was the idler pulley). It either has to be the high pressure fuel pump system thats located near the firewall banging around or the exhaust system (cat converters). The noise sounds like its coming from the firewall right under the dash near the pedals - I've recorded the sound in that area a few times. I really think its the cats - the fact that the noise disappears under long turns leads me to believe the cats are being pushed against the casing causing the cats to stop "rattling". Another note - the noise usually goes away completely when the truck has been running for a while (again leading me to believe it's the cats - expanding under heat and pushing against the casing to stop the rattling). Most importantly - where are the cats located - right under the floorboard/firewall beneath the pedals where the noise is most noticeable. Hmm. Just some ideas here but it's definitely annoying. I'd like to tell GM this but if it is the exhaust system it's not going to be cheap to replace. The OEM Y-Pipe w/ the cats attached go for around $800. Eventually I will replace the entire exhaust system and pray that fixes it. Anyone else have any luck changing exhaust systems (not cat-back systems) please let us know! Thanks!