I have a 2004 Toyota Sienna and it has 80k+ miles on it. I guess it is the drive belt that is making the noise and I decide to have it changed. I can have the timing belt changed too because it is due at 90k miles. The dealer guy told me that I should also have the water pump changed too because of 2 reasons:1. the new timing belt will cause pressure to the old water pump. If not changed, it will leak in weeks.2. it is cheaper to do it altogether.Without changing the water pump, it would cost about $300.All would cost $1000+.My friend who also has a Sienna that has more miles on it, told me that he did not have to change the water pump.Your advice about the water pump is?
When I change timing belts, I don't change water pumps. Since I do my own maintenance, I'm willing to spend another 4-5 hours tearing things apart to change the water pump if it subsequently fails. If I were paying a shop to do it, I'd have all the work done. Since the water pump is a moving part with bearing, its going to fail. Will it fail at 80k or 180k? Hard to tell. If you're willing to take the chance that it won't fail and are willing to pay the extra money to take it all apart again if it does, then don't change it. A better way to think of it might be in terms of how long you plan to own the vehicle. If you want to keep driving it another 100k miles, then I'd change it out now, if you plan on selling/trading it in in a couple more years, guess I'd be more inclined to skip it. Hope this helps.
Change the the timing belt if it breaks you can bend a valve the smaller import engine have what they call a zero (0) tolerance.For the water pump it runs off of the timing belt so since your timing belt is already off you should change the water pump.Another words you will need to tear the timing belt back out in order to change the water pump not if but when it goes out.The dealer price is not bad for a dealer you might be able to save a little more if you shop around GOOD LUCK
This Site Might Help You. RE: About drive-belt, timing belt, and water pump of a Tpyota Sienna? I have a 2004 Toyota Sienna and it has 80k+ miles on it. I guess it is the drive belt that is making the noise and I decide to have it changed. I can have the timing belt changed too because it is due at 90k miles. The dealer guy told me that I should also have the water pump changed too...
Toyota Sienna Timing Belt
