Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161209-102960-1ukprq2js:136:3912)
    at m.mountComponent (/tmp/execjs20161209-102960-1ukprq2js:47:15602)
    at /tmp/execjs20161209-102960-1ukprq2js:49:31860
    at a.r.perform (/tmp/execjs20161209-102960-1ukprq2js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161209-102960-1ukprq2js:49:31821)
    at r (/tmp/execjs20161209-102960-1ukprq2js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161209-102960-1ukprq2js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161209-102960-1ukprq2js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161209-102960-1ukprq2js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161209-102960-1ukprq2js:173:8

How Long Does a Water Pump (Auxiliary) Last?

Auxiliary Water Pump

Your car uses coolant for a number of purposes. It’s essential for keeping the engine within operating temperatures, as well as protecting the block from freezing temperatures. It’s also used to operate your car’s heater. While most vehicles only have a single water pump, some have a second pump, called an auxiliary water pump.

An auxiliary water pump differs from the primary pump in a number of different ways. First, it’s electronic, rather than belt driven. Second, it only works to pump extra coolant through the heater core. Here, it’s used to warm the air that blows into the cabin. Really, the only time the auxiliary water pump should operate is after you’ve turned the engine off but need to warm the cabin. The pump will run with the key in the on position, providing warmed coolant to the heater core.

In theory, your car’s auxiliary water pump should last the life of the car. However, it is an electronic component, and it is subject to failure at any point. Anything from a blown fuse to damaged wiring to a seized pump motor can render it inoperable.

What’s more, there is no set inspection for this pump. It’s not part of any regular maintenance service, and it is also not part of manufacturer specified scheduled services. With that being said, they are subject to wear and tear, primarily to the brushes in the motor. The cooling circuit itself may also be subject to damage (wiring damage, for instance).

Of course, if your pump fails you may not even notice it since it’s not part of normal vehicle operation. The only time a failed pump might present problems is during severe winter weather. Even then it won’t keep your vehicle off the road, but it could definitely lead to an uncomfortable experience if you attempt to work the heater without the engine running.

Obviously, you need to know a few signs and symptoms of impending failure (or if the pump has already failed). These include:

  • Pump does not operate with the engine off and the key turned to on while the heat is running (you can’t hear the pump switch on)
  • Coolant leaking from the auxiliary water pump
  • No hot air from heater with the engine off and the key on

Having a failed auxiliary water pump isn’t a problem that will keep you off the road, but it does need to be addressed. Having a certified mechanic, such as one from YourMechanic, replace the auxiliary water pump is a simple convenient fix that will keep you warm during those cold winters.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...


Related questions

Q: Starting problems on a 2005 Honda Pilot

If it cranks but it doesn't start, I've got a video "fixing the car that cranks but doesn't start." You'd want to do all those tests. Check the fuel pump pressure and check if you are getting spark to the...

Q: What Does Cold Weather Do to Engine Hoses?

Engine hoses are constructed of rubber compounds (EPDM) that are designed to operate in a wide variety of adverse conditions, including temperature variations. Cold weather (above 0 ℉) has the effect of stiffening the hose material. When combined with the...

Q: timing belt and tensioner replacement

Hello. All noises have to be diagnosed and confirmed so that you don't needlessly spend money on repairs. In your circumstance, your particular car model does require a new timing belt every 60,000 miles anyway, so if the timing belt...