[2005 es330]

A second opinion is a good idea. Is that U.S. dollars or Canadian?

Also, Cylinder Head? Why?

I am assuming a shop inspected the engine and told you this? or are you just going off of the codes and google searches? Like the guy above asked, how was it diagnosed to need those parts?

I am not familiar with the Sienna, My Father in law had his 2009 ford F150 taken in for a timing job, they replaced both the cam sprockets (cam phasers) Timing chain, tensioners, guides, seals and gaskets for valve covers and timing chain cover. This job also requires removing quite a few components just to get the timing chain cover off so quite a bit of labor. Parts and labor were like $1,500. So ya, $6K seems a bit nuts to me. That may be totally legit for your vehicle and issue but I sure would take it to at least one more shop for an inspection and quote.

I was looking up the price of some timing kits for that vehicle and new phasers/sprockets, looks like it can run up to like $700 to $1200 us. Gaskets and seals fluids should be pretty cheap. Not sure where they are getting 3K in parts and new timing cover and head? But if your issue was from a failed tensioner or broken timing chain guide allowing the chain to rattle in its housing and your engine and if your cover and head are aluminum, it is not uncommon for the chain to rub against the timing cover and not only put metal shavings into the oil but also even grind a hole right through the cover. I do not think it needs to be replaced unless it has some very serious damage or a hole worn through. Could it have done enough damage to the head to need a replacement? or did it just get a bit scratched and they are trying to sell you parts you do not really need? Replacing the head will add a lot to the parts and labor cost. Get a second opinion and find out if this is something you really must replace.

 

[2005 es330]

if you did not open it up and look or have a shop inspect, how does the vehicle function? Does it run fine at speed but maybe lack power then run really rough when driving slow like in your driveway, or coming to a stop? is there a rattle when you first start up? these codes could simply be a bad sensor, a bad or clogged solenoid which can be replaced without taking anything apart, or just a worn spring on one of the cam phasers. This does require removing the valve cover for that one side, blocking the chain in place so it does not move when you remove the chain from the one cam phaser/sprocket, then one bolt to remove to pull the phaser off of the cam shaft, then slip on the new phaser, replace the bolt, replace the chain, remove the rubber block that holds the chain/timing in place, new valve cover gasket. replace cover and any sensor or actuator you had to remove to do so. Something you could do yourself with a few parts and maybe a kit with a block to hold the chain in place so you do not lose the timing. if you opened it up, do you have any pictures to share? A bad phaser can usually be identified visually by how it is positioned with the engine off, You will have to look up how yours is supposed to be positioned when at 0 when off. if it is not sitting where it is supposed to be that is a clear sign of a bad spring.

 

[2005 es330]

If it was mine I would probably take off the valve cover to get a visual of the condition of the sprocket and chain and see the position of the cam phaser, then try to look down the chain to see if I can see anything obvious going on with the plastic chain guides, In fords they will crack and sometime break to pieces. I would also pull the oil pan off to see if I had any chunks of that guide in the pan. Those steps right there will give you a lot of information. Replacing a head and timing cover with new ones makes no sense to me unless there is obvious damage, or they are trying to take advantage of someone that does not know much about engines. Would not be the first shop selling you parts and services you do not need. Did you mention oil and coolant leaks? Can you see where the coolant is leaking from? You might just have a loose clamp and they are trying to sell you a water pump job. Do you have water in your oil? Otherwise I do not know why they are saying you need a new head, even then it would be a head gasket not a new head.
Did they actually look at the vehicle? do you know what exactly they did? Did they remove any components or just start it up and listen? Did they give you a written quote and list of things they looked at and what they found? If so can you post it?

 

[2005 es330]

Miracle Fix for the VVT Death Rattle - 2GR-FE Toyota 3.5-liter V6 - RAV4 Camry Sienna Highlander - YouTube

Try the simple things first like the video above. By the way, the Timing job on that engine if that is the one on yours looks like a real pain in the rear, I am not going to complain about having to change out my own timing belt every 90K. A piece of cake in comparison. If they have to pull your engine to to a timing chain job, that would explain the labor cost. But lets hope a better shop can find it is something much simpler and cheaper to correct your issues.

 

[2005 es330]

They are supposed to be super reputable. They ran codes and all the paperwork says is what the original post says , it reads like there’s some visual inspection that took place… for$140 diagnosis I sure would like to think so. I’ll take your advice though and see if I can pull the valve cover and have a look ( googling valve cover removal now)

Don't remove it until you have a replacement valve cover gasket if you are going to run it, might be ok with the old one if just driving to the shop.