My 2004 V8 Limited 4Runner

gkomo · May 2, 2023

xtremewlr said: ↑

I've got over 330k miles on my 03 V8. The 2UZ V8 is Toyota's famous million mile motor. As long as you stay up on the maintenance, which the most important one is doing the timing belt every 90k-ish miles, the engine will last you a long, long time.

Timing belt with water pump and coolant change - every 90-100k miles. Use the

$184 Aisin TKT-021 Engine Timing Belt Kit with Water Pump - Compatible with Select Lexus GS400, GS430, GX470, LS400, LS430, LX470, SC400, SC430 Toyota 4Runner, Land Cruiser, Sequoia, Tundra

Aisin TKT-021 kit as they are mostly OEM parts without the price:

$184 AISIN TKT-021 Engine Timing Belt Kit with Water Pump - Compatible with Select Lexus GS400, GS430, GX470, LS400, LS430, LX470, SC400, SC430 Toyota 4Runner, Land Cruiser, Sequoia, Tundra

https://www.amazon.com/gp/product/B008EEYWKI

Use whatever oil you want, synthetic works just fine, even with the higher miles. I run 5w-30 Mobil1 Truck and SUV synthetic with the OEM

$53 Toyota 90915-YZZD3 Oil Filter 1 Case (QTY 10)

Toyota 90915-YZZD3 oil filters and roughly 6k mile OCI.

For the transmission, I would recommend do a drain and refill, not a flush, using either the Toyota WS trans fluid or Valvoline MaxLife ATF. I run the Valvoline. The 04 4runner should have a dipstick on the trans still and the fluid is not lifetime in any of them. I've also dropped the trans pan and changed the internal trans filter. Check the trans mount while you are down there since they tend to wear out with higher mileage. I've replaced mine already.

Being that you have a Limited and you said the suspension is still stock, I imagine it has the XREAS system on it. Keep an eye on this system for leaks. You don't have to replace the system with XREAS again if the shocks are blown. XREAS is very expensive to replace and not worth the effort IMO. You can put regular shocks from a non-XREAS 4runner into it.

The stock exhaust manifolds with catalytic converter are known to leak after higher mileage. You will hear a ticking noise on cold startup and possibly all the time if it's really bad. Not cheap to replace, each manifold with cat is around $500 + labor to replace if you don't do it yourself. Be sure to have the motor mounts inspected at the time as well.

Your transfer case is full time AWD but you should still shift it into 4WD Lo at least once a month to make sure the shift solenoids aren't sticking in it. You don't need to drive it in 4LO, just shift it in and out of 4LO a couple times at least once a month. Otherwise, if the solenoids fail, you are potentially looking at having them replaced on the transfer case, which is not cheap. There are other options if you are wanting to modify the vehicle.

Check hoses under the hood, specifically for the power steering. They tend to harden with higher miles and will need to be replaced. Speaking of the power steering, it uses the same ATF as the transmission. Not actual power steering fluid. Many people make the mistake of filling them with power steering fluid instead of ATF and have issues.

Those are really the main things to be aware of with the V8 4Runners. You've got a great, reliable vehicle that will last you hundreds of thousands of miles with good maintenance.
Click to expand...

Is the oil filter

$53 90915-YZZD3 Oil Filter 1 Case (QTY 10)

90915-YZZD3 really the same one I use on my 2014 v6 Tacoma? I checked Amazon and it says it fits both. I have a 6 pack for my Tacoma but just checking this filter actually will work on this 4Runner (v8).

xtremewlr · May 3, 2023

gkomo[OP] said: ↑

Is the oil filter

$53 90915-YZZD3 Oil Filter 1 Case (QTY 10)

90915-YZZD3 really the same one I use on my 2014 v6 Tacoma? I checked Amazon and it says it fits both. I have a 6 pack for my Tacoma but just checking this filter actually will work on this 4Runner (v8).
Click to expand...

Yup, same filter.

gkomo · May 3, 2023

Nice, that's convenient.

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