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Old 10-29-2010, 07:31 AM   #90
Frodo
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Join Date: Mar 2007
Location: Ohio
Posts: 2,000
So Jake, back to tnoice's question (specifically with regard to the AOS):

"So question is, would you include changing out the AOS every 60-80,000 miles AND the water pump a good precautionary measure, or is it not needed. Run it till it breaks?"

And (directly related to that question) are the early symptoms of AOS failure (mentioned in my last post) pretty reliable indicators that one can wait to see/hear, or should the AOS (like the water pump) just routinely be replaced after a certain number years? If it (the AOS) should be replaced based on age alone (ie, before any signs that it's failing), how long should we go between replacements?
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