A Car noob here. I have a Toyota Rav4 model 2014 and I always go to Toyota's service center for my regular maintenance. I know they need to make money so I expect to be ripped off every time I visit for what should be just a 90$ oil change, but they always come up with something that needs replacing, lubricating, etc.

I usually don't argue because I know about cars as much as I know about nuclear physics.

However, today was a little bit strange. I was waiting for the service to be done on my car at Starbucks and I got a call from my service center. No surprise! I know they have found something that needs to be changed.

This time they said there is some kind of a rodent that was in my engine, and they need to do an Engine "Shampoo". I asked how much is that "Shampooing" service and they said 60$. (In my mind I said 60$ is not bad, there must be something else). So I told her yes, 60$ is fine, use as much Shampoo as you like.

Then she said oh but there is a problem (Here we go), there are two wires that are chewed a little bit but they are still intact and we cannot do the shampooing before we replace those two wires. I said fine, how much to replace the two wires, then, BAM 500$+Tax.

I told her you know what, leave it as it is right know until I figure out what I need to do, this is when she basically went back to the same old script which is so and so needs lubricating (50$) and the car needs some EFI & Throttle service for 200$ which I never argue about because that could be legitimate.

So right know, I am going to do all the other stuff, but I am not sure about the Shampooing and the wire replacement thing. I don't want to ignore it if it was a serious problem, but from the way she sounded it looks trivial to me especially for 500$.

When I went home, I opened the hood, and first thing I noticed is that there weren't any rodent droppings that I can see. So I took pictures of the wires and applied some peppermint oil randomly which is something I found online that keeps rodents away.

However, I really didn't know what to take pictures off so I just took bunch of them plus a video of all the wires hooked to the engine. All the pictures are shared at the following link:

<https://1drv.ms/u/s!Aj8k-i9IcAxE5ACOBg-K34A4tD-S?e=2UdSoX>

The recommendation from the service center are (I am just going to do the last two for now):

* Repair Two Wires (Coil Pack 2 & 3) - Chewed $500+Tax (4H)
* Plus Engine Shampoo $59.95+TAX
* perform EFI & Throttle Body Service 199.90+TAX
* Lubricate Propeller Shaft blots 39.05+TAX

Could anyone please help me in verifying if "Coil Pack 2 & 3" really need replacing?

Thanks.