VIDEO- Engine/ tranny? Whine and knock ?‍♂️

TNTSierra · November 21, 2020

2 minutes ago, Dersch said:

Ah okay that makes sense for sure. Thats a solid deal then

Im definitely nervous to see what happens. The dealer im at now seem pretty good so im hopeful but we will see. Definitely sucks not having my truck and having no end date.

This is my 2nd silverado 2015-2020

Gotcha! let them know you have bought a few GM vehicles. Also, make sure you get a claim number. It will stay on file for that truck. It also cuts down on the process when speaking to a representative.

Yes, getting the right dealership who cares really helps out. The one I was at we have bought multiple vehicles from but are also a huge dealership and their reputation means a lot to them. Otherwise the other local dealership which is bigger would take business from them.

Dersch · November 21, 2020

37 minutes ago, TNTSilverado said:

Gotcha! let them know you have bought a few GM vehicles. Also, make sure you get a claim number. It will stay on file for that truck. It also cuts down on the process when speaking to a representative.

Yes, getting the right dealership who cares really helps out. The one I was at we have bought multiple vehicles from but are also a huge dealership and their reputation means a lot to them. Otherwise the other local dealership which is bigger would take business from them.

Thanks for the tips. Will do.

Unfortunately im in a holding pattern currently. Cant do anything but wait. They have to try and figure out whats wrong with it, attempt to fix it and hope it does fix it. Im nervous though about the long term impacts of all this on the engine and tranny if they dont replace it completely. But we will see what happens.

Ill be updating as i hear things. Just gonna let the dealer do their things

Dersch · November 24, 2020

Update 11-24-2020 330pm

Dealership called me....

Told me they diagnosed it down to be the transmission fluid pump. Said they ordered the part but its on back order with no ETA. but he said usually that means about 2 weeks. So we will see what happens.

Im not sure a transmission fluid pump would cause a knock? The whine like im hearing absolutely possible.

But i guess we will see what happens if they get it fixed or not.

Today marks day 11 without truck

SteveCZ · November 25, 2020

It could actually be the transmission fluid pump. I thought I had motor issues on my 2014 5.3, with a knock similar to that, and they diagnosed it as the pump. After replacing that, the truck was silent. Granted, a 6 speed and the "old" 5.3 but......

Also, after they fixed that, I drove the truck for another 25k with no issues until I traded it in.

Dersch · November 25, 2020

5 minutes ago, SteveCZ said:

It could actually be the transmission fluid pump. I thought I had motor issues on my 2014 5.3, with a knock similar to that, and they diagnosed it as the pump. After replacing that, the truck was silent. Granted, a 6 speed and the "old" 5.3 but......

Also, after they fixed that, I drove the truck for another 25k with no issues until I traded it in.

Good to know! I did some google research last night and the whine seems like a very good possibility its the pump. I didnt see anything about a knock but good to know!

Did you trade because of that or other reasons?

Brian21477 · December 6, 2020

On 11/24/2020 at 3:56 PM, Dersch said:

Update 11-24-2020 330pm

Dealership called me....

Told me they diagnosed it down to be the transmission fluid pump. Said they ordered the part but its on back order with no ETA. but he said usually that means about 2 weeks. So we will see what happens.

Im not sure a transmission fluid pump would cause a knock? The whine like im hearing absolutely possible.

But i guess we will see what happens if they get it fixed or not.

Today marks day 11 without truck

Hey Dersch, any update on the engine whine? Did the tranny pump fix it? I have 2020 LT Trail Boss 6.2 with same engine whine. Two dealer visits with 0 luck. They replaced a bearing in or near the transmission pump supposedly but drove off the lot and the noise was still there. Unbelievable.

Dersch · December 6, 2020

42 minutes ago, Brian21477 said:

Hey Dersch, any update on the engine whine? Did the tranny pump fix it? I have 2020 LT Trail Boss 6.2 with same engine whine. Two dealer visits with 0 luck. They replaced a bearing in or near the transmission pump supposedly but drove off the lot and the noise was still there. Unbelievable.

Ugh oh no thats not good. Especially since i have a 5.3 and you have rhe 6.2L.

Highly recommend getting under truck and making sure there isnt a knock too. Engine whine started with knock few days later.

Havent updated in a bit sorry.

So Wednesday they called me to say part was in and itd be fixed in 2 days to pick up friday. Had a minor surgery friday so i called them Thursday to tell them I wouldn't be able to pick it up... got the whole rude well uhh idk I guess you can just get it saturday... the advisor said he would fall me friday to tell me its done and what advisor I would need to see Saturday since he wouldn't be there. I never got a call friday and i never got a call yesterday. So im not really sure whats going on.

Kinda feel like the part didnt fix it but im also trying to get to my 30 days for lemon law so im not calling them at all. But I assume i will get a call tomorrow either complaining I didn't come get it or explaining why its not done.

Id start contacting a lemon law lawyer. Document and get a video of the sound

Brian21477 · December 6, 2020

9 minutes ago, Dersch said:

Ugh oh no thats not good. Especially since i have a 5.3 and you have rhe 6.2L.

Highly recommend getting under truck and making sure there isnt a knock too. Engine whine started with knock few days later.

Havent updated in a bit sorry.

So Wednesday they called me to say part was in and itd be fixed in 2 days to pick up friday. Had a minor surgery friday so i called them Thursday to tell them I wouldn't be able to pick it up... got the whole rude well uhh idk I guess you can just get it saturday... the advisor said he would fall me friday to tell me its done and what advisor I would need to see Saturday since he wouldn't be there. I never got a call friday and i never got a call yesterday. So im not really sure whats going on.

Kinda feel like the part didnt fix it but im also trying to get to my 30 days for lemon law so im not calling them at all. But I assume i will get a call tomorrow either complaining I didn't come get it or explaining why its not done.

Id start contacting a lemon law lawyer. Document and get a video of the sound

I had a knock too, more of a clunk when going over bumps, more like speed bumps or driveway entrances, when the truck would rock as a result and would get a clunking sound. Sounded like there was something bouncing around in the bed almost. I brought to dealer and they installed some pads between the leaf springs. It definitely helped silence it but still hear the clunk slightly from time to time. Not sure if this is the same knocking you’re getting. As for the whine, I’m frustrated with this. I’m reading on here a lot of guys with the same problem and no fix. I don’t have a lot of time to be leaving my truck with the dealer as I am active duty Marine and deploy. So not sure what to do next. As for the lemon law, I’m stationed in NC and their lemon law is 20 days in the shop with unsuccessful results or 4 times for same repair qualifies for lemon law. I’ve already had it in the Chevy dealer twice (total of 18 work days), so one more unsuccessful visit to the dealer will be it. I will probably start looking into the lemon law lawyers.

Dersch · December 6, 2020

15 minutes ago, Brian21477 said:

I had a knock too, more of a clunk when going over bumps, more like speed bumps or driveway entrances, when the truck would rock as a result and would get a clunking sound. Sounded like there was something bouncing around in the bed almost. I brought to dealer and they installed some pads between the leaf springs. It definitely helped silence it but still hear the clunk slightly from time to time. Not sure if this is the same knocking you’re getting. As for the whine, I’m frustrated with this. I’m reading on here a lot of guys with the same problem and no fix. I don’t have a lot of time to be leaving my truck with the dealer as I am active duty Marine and deploy. So not sure what to do next. As for the lemon law, I’m stationed in NC and their lemon law is 20 days in the shop with unsuccessful results or 4 times for same repair qualifies for lemon law. I’ve already had it in the Chevy dealer twice (total of 18 work days), so one more unsuccessful visit to the dealer will be it. I will probably start looking into the lemon law lawyers.

My knocking is definitely different than that. Mines clearly from the engine and heard while in park not moving.

Unfortunately yeah lemon law wise thats your best option. My guys been great so far and very informative. Just so you know the standard is 4x attempts and 30 buisness days. Thats what I would recommend though cause the dealer clearly has no idea whats wrong with the trucks. Sounds like similiar but Different issues. I havent heard anyone else have issues like this tho

Dersch · December 8, 2020

Update 12-8-2020

Dealer called me today and said truck was ready. Basically said it took longer because they got into transmission and found more issues. So they Basically rebuilt the whole thing. But said it was fixed...

Went to dealer and picked it up. Definitely no whine! Yay... right? Wrong... started it up, rolled window down and sure enough its knocking. So left with it to drive and everything. Once it got warmed up i could hear the knock inside the truck and absolutely heard it outside the truck. So made an appointment to have it looked at again. 2pm tomorrow dropping it off with a loaner.

I am so over this process.

I also swear the truck seemed to drive like a dog. It was plenty warmed up and just felt like driving a diesel truck on a super cold morning without letting it warmed up. Which goes perfect with the fact that the engine knock makes it sound like a diesel

Brian21477 · December 8, 2020

2 minutes ago, Dersch said:

Update 12-8-2020

Dealer called me today and said truck was ready. Basically said it took longer because they got into transmission and found more issues. So they Basically rebuilt the whole thing. But said it was fixed...

Went to dealer and picked it up. Definitely no whine! Yay... right? Wrong... started it up, rolled window down and sure enough its knocking. So left with it to drive and everything. Once it got warmed up i could hear the knock inside the truck and absolutely heard it outside the truck. So made an appointment to have it looked at again. 2pm tomorrow dropping it off with a loaner.

I am so over this process.

I also swear the truck seemed to drive like a dog. It was plenty warmed up and just felt like driving a diesel truck on a super cold morning without letting it warmed up. Which goes perfect with the fact that the engine knock makes it sound like a diesel

This gives me no confidence at all in getting mine resolved. I have my third appointment tomorrow at Chevy (different dealership this time to see if I get better results). Funny you mentioned yours is now driving like a cold diesel, because mine is driving like that too now, only 2800 miles on it. I swear it has lost power. The 420 HP motor drives like a 4 cylinder now. I am so over this as well. I have contacted a lemon law attorney to start the process.

Dersch · December 8, 2020

11 minutes ago, Brian21477 said:

This gives me no confidence at all in getting mine resolved. I have my third appointment tomorrow at Chevy (different dealership this time to see if I get better results). Funny you mentioned yours is now driving like a cold diesel, because mine is driving like that too now, only 2800 miles on it. I swear it has lost power. The 420 HP motor drives like a 4 cylinder now. I am so over this as well. I have contacted a lemon law attorney to start the process.

Yeah im not sure if im just in my head about it driving like a dog or what. They had me in an impala which was zippy af so im trying to be realistic but i remember my truck feeling like a race car. Of course ive got 35s on mine so theyll blame it on that but legit it feels so slow and under powered now too.

Your best bet is the lawyer. Mine told me take it for my 3rd appointment tomorrow and then call hom back

Brian21477 · December 9, 2020

4 hours ago, Dersch said:

Yeah im not sure if im just in my head about it driving like a dog or what. They had me in an impala which was zippy af so im trying to be realistic but i remember my truck feeling like a race car. Of course ive got 35s on mine so theyll blame it on that but legit it feels so slow and under powered now too.

Your best bet is the lawyer. Mine told me take it for my 3rd appointment tomorrow and then call hom back

It’s not just in your head. My 6.2 Trail Boss has the 18” wheels with the GY Duratracs but mine used to feel so much more powerful. Only have 2500 miles on it!

Dersch · December 9, 2020

Update 12-9-2020

Took vehicle back to original shop that said nothing was wrong with it (prior to transmission rebuilt). First off this shops a fricken disaster. Made appt for yesterday they call me saying we have no loaners come today so i do and hes like oh well we have no loaners for you... anwyays

I tell him its for an engine knock/ whine, it feels under powered now and i have an exhaust leak/ noise shifting from 1st to 2nd. Hes like you just had it here and we said it was fine. We had our best/ head mechanic see it and nothings wrong with it. Hes like i see these all day this is normal... nothings wrong with it. Knowing i wasnt leaving there without documentation cause i need it for my lemon law case i literally had to argue with the guy for at least 20 mins to get them to look at it. He finally agreed to and im like well i gotta go cause i work night shift hes like well we dont have loaners so itll be about an hour and if its normal you can just take it. So i waited. They drove it 16 miles he said and said it was fine/ normal. Which is BS.

Also a 2017 tahoe pulled in and had literally unreadable level of oil in it and was more quiet then my truck -_-

So sent all my info and documents to the lawyer and now im waiting to hear what happens. He hasnt responded yet.

Brian21477 · December 9, 2020

7 minutes ago, Dersch said:

Update 12-9-2020

Took vehicle back to original shop that said nothing was wrong with it (prior to transmission rebuilt). First off this shops a fricken disaster. Made appt for yesterday they call me saying we have no loaners come today so i do and hes like oh well we have no loaners for you... anwyays

I tell him its for an engine knock/ whine, it feels under powered now and i have an exhaust leak/ noise shifting from 1st to 2nd. Hes like you just had it here and we said it was fine. We had our best/ head mechanic see it and nothings wrong with it. Hes like i see these all day this is normal... nothings wrong with it. Knowing i wasnt leaving there without documentation cause i need it for my lemon law case i literally had to argue with the guy for at least 20 mins to get them to look at it. He finally agreed to and im like well i gotta go cause i work night shift hes like well we dont have loaners so itll be about an hour and if its normal you can just take it. So i waited. They drove it 16 miles he said and said it was fine/ normal. Which is BS.

Also a 2017 tahoe pulled in and had literally unreadable level of oil in it and was more quiet then my truck -_-

So sent all my info and documents to the lawyer and now im waiting to hear what happens. He hasnt responded yet.

I took mine in today for the third visit for the engine whine. Some older mechanic who said he’s been in the business for a long time rode with me to hear the whining. He tried to tell me he couldn’t hear the noise. I said really! You don’t hear what sounds like a fire engine siren in the distance coming from the front of the truck? Then he proceeded to tell me that he was deaf in his left ear. I laughed and said that would be my luck! Then he eventually heard it and drove it himself to see if he could feel the degradation of power as well. He said he didn’t know how it felt when it was new so he wanted to test drive another one from the sales lot. Not sure where that ended up because I had to get to work so I left it. They gave me a loaner. This visit here will take me into the time window for the lemon law. I already spoke with an attorney and started the process.