Q: Replaced water pump (no noise before just leaky) now there's loud humming noise and I don't have heat. Haven't tried driving yet.

asked by on

My car is a 2003 Saturn vue 2.2 ecotech motor. The water pump was leaking so I replaced it ( though I learned after I just needed to do the seals) and now there is a loud humming noise coming from the water pump/timing area. I also don't have heat and I replace the thermostat correctly and tested it while replacing the water pump. What could the noise be? Why don't I have heat? Ps. There are no leaks at all after replacement.. Please Help!!!

My car has 97500 miles.
My car has an automatic transmission.

Hi there. From the description you have provided, you replacing the water pump and now you have a new noise and no heat, are an combination of things going on. First, the loud humming noise coming from the water pump/timing area concerns me. Assuming, you followed the repair procedure properly for the water pump replacement. It could be, the replacement water pump is faulty. Something is amiss and needs to be corrected before you go out and drive your vehicle. The noise could result into a catastrophic and an expensive repair. Second, no heat could be, there is air trapped in the heater core and needs to be bled and/or flushed. I recommend having your vehicle’s no heat and humming noise 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 1,000 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!
  1. Home
  2. Questions
  3. Replaced water pump (no noise before just leaky) now there's loud humming noise and I don't have heat. Haven't tried driving yet.

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: humming noise

It sounds like you have a wheel bearing going bad. Noisy wheel bearings will only make noise when the car is in motion. They will get louder the faster you go. They also change pitch, or get louder or more...

Q: Overheating after thermostat replacement

Hello. You could be having a problem with your radiator being clogged up. This will cause the flow of the coolant in the system to be restricted, causing the truck to overheat. A clog in the heater core could also...

Q: My 2005 Saturn vue is starting to have high rpm's while driving

Hi there, A number of things may cause this to happen, but it sounds like your vehicle may be a bit low on transmission fluid or you may potentially have a bad transmission control solenoid. As you know, the transmission...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...