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WATER PUMP Failure....

37920 Views 16 Replies 12 Participants Last post by  Junker
Hello , I'm new to the forum but I've always owned toyotas. Actually I rebuild engines on my spare time(mostlly 2ZZ-GE engines for the celica and Lotus)
I own a 2007 sienna LE.
I wanted to give you a heads up on the water pump. After having 105 000km on the odometer it let go. Having past the warranty period I was quoted from the dealer a 6 hours job and about $200 for the part alone. The symptoms will start with the air condition system behaving erratic (cold /hot). The system will put itself in a recirculation mod to compensate and it will be physical impossible to get it in fresh mod. I'm guessing it has something to do to with the a lower coolant level. It's not very complicated of a job to do but involves numerous steps to get at it!
The pumps bearings are at fault here. It was confirmed to me from some friends (mechanics) that work at a Toyota dealer....the 3.5 V6's have been having all their pumps changed at about that millage. Look for some slight leaking ( it's quite hard to look at, as it's very tight) and check your coolant level.
I didn't check mine I thought "This is a Toyota not a Volkswagen!.. the pumps are supposed to last a long time!" ::) But please do it before you reach that 100 000km /60 000 milles mark.
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JC said:

If you are quoting a mileage in kilometers, you must be in Canada, is that correct? Part is about $185. Check 1sttoytaparts for a cheaper part. I got a timing belt and water pump shipped to a US address for $140 US which included shipping fees. (I'm a Canuck, but was visiting family in the US ;D)

If you are going to get the water pump replaced, then you might as well have the timing belt replaced at the same time. They need to take the belt off to replace the water pump.

Sorry to hear about your problem.

Regards, Jason.
Manny is referring to a 2007 3.5L Sienna. The 3.5L V/6 GR series engine does not have a timing belt, it has a timing chain. The chain is an internal lubricated part that does not need to be replaced unless it fails (not common).
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