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2005 Sequoia - Loud at highway speeds

259 Views 11 Replies 4 Participants Last post by  WannaSequoia
I have a 2005 Sequoia with about 150K miles on it. We just got back from a 600 mile trip, and at highway speeds (60-80MPH), it is pretty loud inside the vehicle. The noise goes away when I take my foot off the gas, then starts again when I put my foot back on the gas. Note that this has been going on for some time (at least a year), but as it has been only a minor inconvenience ( easily covered up with radio volume), it wasn't a priority to get it looked at. Oil is changed regularly by the original dealer I purchase it from. I dread asking them to take a look at is...

My thinking is exhaust issue, somewhere closer to engine. Any guesses, or advice?
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It could be the steering shaft seal? DIY here: DIY Main Steering Shaft Seal Replacement Guess I should ask about wheel bearings too just in case as that seems to be a common weird noise thing.
Cracked manifolds on these are pretty common. Order some new headers!
Cracked manifolds on these are pretty common. Order some new headers!
Wouldn't this result in oil leaks? The engine is clean, no oil anyplace.
Wouldn't this result in oil leaks? The engine is clean, no oil anyplace.
exhaust manifold. a cracked one does cause a lot of noise in the engine bay and cabin.
exhaust manifold. a cracked one does cause a lot of noise in the engine bay and cabin.
Ah- Thanks!
So I had dealer change oil today. They did their usual upsell try of about 3500K (2 new tires at $800, $55 wiper blades, $150 alignment, $60 air filter, $1200 lower ball joints, $500 spark plugs, and $800 valve cover gaskets).

A few months ago I noticed a bunch of clean oil drops on my garage floor, and found it originating at the valve covers. I snugged up the valve cover bolts, a few of which were very loose (not overtigntening), and the problem went away. But if indeed the gaskets do need to be replaced, could this be a contributing factor to this vehicle seeming loud at highway speeds?
Old trucks have old-truck problems. With your rig approaching 20 years old, anything rubber like hoses, gaskets, vacuum lines and bushings that, I'm assuming, are original to the truck will start to wear out and leak. Toyota reliability is based on the infrequency of changing parts and the quality of parts, not never changing them out because they are made of invincium.

While it may seem like "upselling," most of those repairs will need to be done sooner or later based on age and mileage. Many people are unaware of maintenance schedules of parts and fluids on their vehicles. Reading the Owner's Manual will give you an idea on what and when things need to be replaced. There's no such thing as a "life-time" fluid or part.

LBJs were part of a recall on Sequoias and worth looking into. Having a front wheel detach is a dramatic life event that you want to avoid. Spend $1500 now or risk going out of control and rolling-over later.

Having had valve cover gaskets replaced on my rig with 350k miles, I can say they made no contribution to engine noise. An exhaust leak would be the most likely culprit for your noise, barring any other noise or performance issue.
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Old trucks have old-truck problems. With your rig approaching 20 years old, anything rubber like hoses, gaskets, vacuum lines and bushings that, I'm assuming, are original to the truck will start to wear out and leak. Toyota reliability is based on the infrequency of changing parts and the quality of parts, not never changing them out because they are made of invincium.

While it may seem like "upselling," most of those repairs will need to be done sooner or later based on age and mileage. Many people are unaware of maintenance schedules of parts and fluids on their vehicles. Reading the Owner's Manual will give you an idea on what and when things need to be replaced. There's no such thing as a "life-time" fluid or part.

LBJs were part of a recall on Sequoias and worth looking into. Having a front wheel detach is a dramatic life event that you want to avoid. Spend $1500 now or risk going out of control and rolling-over later.

Having had valve cover gaskets replaced on my rig with 350k miles, I can say they made no contribution to engine noise. An exhaust leak would be the most likely culprit for your noise, barring any other noise or performance issue.
Thanks. The maintenance/repairs need to be done... and they will. I mentioned "upsell" due to the pricing I was presented with. $900 for 2 tires I will purchase through Tire Rack for $450 shipped, and will cost me $60 for install. I don't mind paying more for convenience, but not close to double.

Good info on the lower ball joint recall. I need to check my maintenance records, but if it was a recall I believe I probably had it done already. Will check.

Also thanks for the valve-cover gasket noise info... I assumed as much, but thought I would ask.
I see there is SSC 70B, and my VIN does fall in the range... but the SSC notice states "Please note that not all vehicles in the VIN range are affected by this SSC "
Called the dealer and they stated no open recalls for my VIN, i.e. not covered.
I don't mind paying more for convenience, but not close to double.
I figured that's what you meant. Dealer prices are ridiculous for some things that owners can easily do themselves. I go to a local independent shop for the work that I can't do myself (since my truck is way past any benefits gained from dealer maintenance upon resale). The last time I used a dealer, the tech didn't reassemble things right and a harness was rubbed through by the accessory belt leaving me stranded on a road trip.
Yeah- My dealer loyalty nowadays extends only to the oil change coupons they mail/email me. Can't beat $9.99 + fees. Even gets you a quick drive-through car wash.
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