Slight grinding noise coming from engine. Shop cant diag

its nothing, the site glitches it sometimes. it's not a pic i attached

 

Is bank 2 on the driver side? I thought bank 2 was passenger side of a 2002 sequoia. It just came up on Convo with the guy when I was telling him about my O2 sensors I put on myself. I might just be getting it confused and need some clarity or is my mechanic really an idiot?

 

The hard part is reinstalling it, for some folks.

This is the method I use: https://www.tundras.com/threads/1st-gen-lunch-table-general-discussion.60450/page-909#post-2613945

I find doing reinstall that way is super helpful. Inspect belt before removal. If you need to replace, now is the time to do it. The (specifically very green) Gates HD belt, which may be made by Delco, I'm not sure, is a great option.

Bank 2 on V8 is passenger side.

 

Oh wow so the guy really is an idiot. 10 years at Toyota. I'm wondering if he actually got fired for whatever XYZ reason instead of just quiting "because I got tired of the shop screwing over both the customer and tech and running off with all the money at the end of the job"

I just knew it, and when we were looking at the car the other day he even mentioned it being on driver side. And I was like "are you sure about that? I'm pretty sure I remember when doing both my spark plugs and O2 sensors bank 2 being passenger"
He said "oh don't worry I will confirm it before I start the job"

I don't know where he is getting his info but that really scares me. Huge red flag that even "after confirming it" he still says it's driver side

Looks like I'm going to have to really get down and dirty myself here shortly. Pray for be that this belt doesn't fight back. I'm pretty nervous I won't be able to get it back off and/or back on

 

I just reinstalled my belt so I could replace a water hose behind it and used the method @shifty` described in the link. One tricky item is position your breaker bar so you get full travel on the tensioner.

 

Bank 1 is driver side aka "B1", and there are two O2 sensor positions, upstreeam "S1" and downstream "S2", you'll see this in the FSM as B1S1 and B1S2. Bank one for the V8 has the odd-number cylinders, i.e. 1, 3, 5, 7 where #1 is closest to the radiator. Sometimes the upstream O2 sensor is referred to as air/fuel ratio sensor, because that's it's primary function: Sniffing the combustion mixture for fuel/oxygen after it leaves the engine.

Bank 2 is passenger side aka "B2", and has the same S1/S2 designations/positions on the O2 sensors. Bank 2 has even-number cylinders, i.e. 2, 4, 6, 8 where #2 is closest to the radiator.

This is very clearly stated in the FSM.

Hardest part of removing the belt is releasing and holding the tensioner out of the way.

​

 

Before you pull the serpentine belt, I'd check the things that BroHon lists above.

Just because someone worked at a dealership, doesn't mean they were a qualified mechanic. They could have just been doing oil changes and tire rotations, or some mechanics just aren't very good mechanics.