Q: Water pump not working and its a new water pump.

asked by on November 12, 2016

Just changed my eater pump and thermostat yesterday but my car is still overheating. Tried to activate the bleeding process to see if the watet pump had power but nothing happened. Is there a fuse for the water pump and if so where is it located?

My car has 100000 miles.
My car has an automatic transmission.

There is not a fuse for the water pump, however this may be caused by a faulty coolant fan switch or potentially a faulty coolant temperature sensor which is responsible for relaying the coolant temperature to the computer which then uses this information for many other things. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. I would suggest having an expert from YourMechanic come to your home to diagnose your cooling system.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Super unhappy with the quality of the interior
This is a very common problem with this generation Highlander. Toyota is well aware of the issue and there is an open recall for this specific problem. In order to properly resolve this issue, contact your local Toyota dealer, describe...
How do I remove the antenna?
The antenna can be removed in case it is even in the way. To remove the antenna, simple grip it at the bottom and rotate it counterclockwise. To re-install the antenna, place it on the base and rotate clockwise.
Fuel injector misfiring
Hi there. This is a common problem with this vehicle. These vehicles often lack proficient injector functioning. A solution for this would be to have a certified mechanic replace the number six injector (https://www.yourmechanic.com/services/fuel-injector-replacement). Also a certified mechanic will test...
Smoke coming from engine
Hello. There are two different types of fluid that would cause smoke to come out from the front of your car. If oil is leaking down from the valve cover gasket or oil filter, and onto the exhaust, this will...
Manual transmission makes noises - 1994 Nissan D21
Hello. It sounds like you have a gear, bearing, bushing, or other rotating component issue caused by wear. At that mileage, really the thing to do is just simply rebuild the transmission which is not particularly difficult since it is...
code is p0340 i change camshaft position sensor but still shows same code .any help or advice
Hi there: The problem with changing out the camshaft position sensor is that sometimes the issue is actually due to the sensor wiring harness; which might be the reason this OBD-II error code was triggered initially. The P-0340 trouble code...
After some repairs my 2007 Kia Sportage continues to overheat.
Hello. If the system is not leaking anymore, and if the thermostat is new then you have another issue going on with the vehicle. This may be an issue with the a clog in the radiator, a coolant flow issue,...
2001 Chrysler PT Cruiser, hesitant starting, but will start, sometimes cuts off while driving, fuel pump is good, get code1389
Hi There, Code P1389 indicates the ASD (Automatic Shut Down) relay is faulty or has low voltage. This can be tested for resistance and should have between 30-70 ohms. This may explain the hard starting as this relay provides power...
My car has new battery but will not start
Not all new batteries are fully charged so you should verify the charge status of the battery and correct as necessary. Be sure the battery is connected properly (no reverse polarity) and that all cables are secure and free of...

Related articles

A Buyer's Guide to the 2012 BMW X3
If If you like high-end SUVs, the 2012 BMW X3 is definitely worth taking a look at. It’s a great mixture of luxury, utility and convenience. Key Features The Servotronic power steering on this SUV is excellent for giving you...
How to Buy a Good Quality Water Pump
When When your car is running it's important that it maintains the proper temperature, which is why the water pump is so important. Not only does it pump water, as the name suggests, but it also pumps coolant into the...
How to Diagnose a Faulty Water Pump
The water pump (https://www.yourmechanic.com/article/how-to-buy-a-good-quality-water-pump) is a part of your vehicle with an important role in the engine's cooling...