Performing maintenance that’s not needed can cause problems, too. I can’t tell you how many times I’ve had to redo something that I didn’t do just right the first time. Wonder if these “proactive maintenance” people are aware of that?

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When water pump is changed, other than coolant drain/refill, is there anything else I should consider getting replaced in the nearby vicinity? The car has timing chain (not timing belt) which to my understanding doesn’t require replacement. Your advises are appreciated.

A few weeks ago, he replaced the radiator, water pump, thermostat and ALL of the coolant hoses on his 10 year old car, because he was preparing to take a big road trip

Interesting. I thought most people would just replace the pump if they are doing the belts either way. I am doing the belts on my vehicle soon and seeing how it leaks fluids like crazy, I’m thinking about just leaving the original pump in and just replacing the tensioner(that’s actually making a noise)

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with a mirror like that it is possible to inspect the weep hole at the bottom of the water pump. If there is a trail of coolant or even a significant trail of dried, crusted coolant a new water pump would be worth considering.

If/when you decide to change out the water pump, suggest to do a coolant drain and refill too. As the engine runs and time goes by the coolant can get a little contaminated , its pH lowers and becomes more acidic, and can lose some of its anti-corrosive protection. Contaminated coolant can damage internal engine gaskets. So it makes $$$ sense to replace the coolant at the same time. Keep the old drive belt in the trunk in case you need it someday, an on the road emergency.

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Yes, this right here. There is little reason to change a pump that is not leaking unless it would puke coolant all over a brand new timing belt and/or cause a bunch of duplicate labor.

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You don’t replace a water pump as preventive maintenance. But replace it if it shows a problem such as leaking from the weep hole on the water pump or noise.

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Since you have 100,000 miles. It would be best to replace the drive belt with the water pump. Also coolant drain and fill is a must. I suggest also replacing the spark plugs with OEM plugs. It wouldn’t hurt to service the transmission. I come from a family of 250-300k mile honda/Toyota’s and that’s the key to having a reliable car.

There’s others who are members who are much more knowledgeable and will undoubtedly reply as well. The only time I’ve heard of proactively changing out a water pump is when another piece, like the timing belt, requires replacement. The primary reason being that most of the labor for a pump replacement has to be done anyway and it’s relatively little additional cost (just for the parts). When I’ve had water pumps replaced in the past, I had warning (it starts leaking coolant) and didn’t cause any other engine damage. If your Toyota is similar in that regard, I don’t see the benefit in changing it before showing symptoms of trouble. If you’re replacing the water pump, you might as well replace the coolant. I wouldn’t be surprised if the owner’s manual recommends a coolant change at 100K anyway.

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2006 Toyota Camry 2.4L engine. 105,000 miles. Is now a good time to change water pump as a proactive maintenance? When water pump is changed, is draining and refilling the engine coolant a part of job? Some shops list engine coolant as one of the parts in water pump replacement. If draining and refilling coolant is part of water pump replacement, I wouldn’t want to sound like I want to two jobs to a mechanic. One mechanic quoted $300 for water pump change and coolant drain/refill.

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I would just change the coolant. If it’s the original it’s 5,000 miles and/or 4 years overdue. Re. preventive maintenance I would also change the thermostat and radiator cap. with OEM parts.

long w/ the above, ask your shop if it would make sense to also replace the thermostat, the radiator cap, and the water pump drive belt at the same time… I’d probably do that if I was doing a pump replacement on my Corolla.

The chain on these motors drives the crankshaft and the camshafts. The water pump is on the serp belt, and is easy to get to.

Since you have a timing chain, I would not replace the pump unless there is a problem. It could last for years, and changing it could cause other problems, including replacing it with a short-lived pump. Happened to me last year with front end components - replace both sides just to be sure, and the ‘good’ side replacement went out in 2 weeks.

OP was asking about the WP only, not timing belt/chain or even serp belt… Now if I was already replacing the WP due to failing, then I would also replace the serp belt if worn any… But not the other way around…

If I was going to do an optional water pump replacement job like this, I’d wait until summer to do it. That way you won’t end up stranded on the road from a leaky water pump install in the middle of winter. That’s the kind of thing you want happening in June or July if it has to happen Yes, new water pumps can leak or be otherwise defective right out of the box.

Mainly if it is an internal water pump (WP) driven by a timing belt you do replace both the WP and timing belt (and all belts if worn), but the OP’s WP is an external WP driven by the serpentine belt and like Tester said, unless something wrong with it, no need…