Skip the auto shop - Our mechanics make house calls

Q: Hydraulic cooling pump replaced pump and now won't circulate fluid.

asked by on

I replaced hydraulic cooling pump, cannot get pump to start pumping, what am I doing wrong?

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

A: Hi there. Assuming, the replacement water p...

Hi there. Assuming, the replacement water pump is correct by application and the serpentine belt is properly routed. This would lead me to believe, air is trapped in the cooling system. Sometimes, bleeding the cooling system can be difficult. A cooling system flush could resolve this issue. If the water pump was replaced for an overheating concern, it may be, the thermostat is at fault for the lack of circulation. I recommend having your vehicle’s lack of coolant circulation be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: Is it a huge pain to change the timing chain the same time you replace a leaking water pump on Lincoln aviator 2003?

Hi there. Although the parts themselves are very close to each other, they require completely different services, tools and parts to successfully complete both jobs. At some shops, they will offer "labor discounts" for completing both jobs at the same...

Q: Coil pack

Hello, A coil pack will generally start to fail intermittently causing a loss of spark for brief periods of time which will of course cause the car not to start. In some cases the loss of spark may happen also...

Q: Trouble starting and accelerating

Hi there, thanks for writing in about your 2002 Hyundai Elantra. There are several possibilities here that require further research. First off, it sounds like your transmission is in "limp" mode, which causes it to start off in 2nd gear...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.