Skip the auto shop - Our mechanics make house calls

Q: Smog pump making noise

asked by on

I can hear a noise from one of the engine accessories. I think it is from the smog pump because there is no noise if the serpentine belt is removed.

A: Hi there. You’re on the right track. When t...

Hi there. You’re on the right track. When the belt is off, spin each part by hand and try to reproduce the noise. Use a drill if you are uncertain at slow speeds. Whichever part is noisy, usually needs replaced. If you need further assistance, I recommend you have a certified technician, like one from YourMechanic, inspect the engine noise and replace any damaged parts.

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: Engine will turn over but will not start.

Hello there, many common faults will cause your 1985 Ford F-250 to crank but not start. You have done great so far in inspecting the vehicle and changing the spark plug wires, fuel pumps, and filters. There are a few...

Q: My power steering just stopped working as o got stuck in the snow just now

It's possible that the front suspension and/or the steering rack sustained damage during this incident. The only other potential cause is a power steering pump failure and/or a failure of the drive belt. I recommend you request a power steering...

Q: How much do you charge for a water pump and clutch fan

Hello, thank you for writing in. The water pump is a very common place to develop leaks. Leaks in that area are a good indication. You can check the hoses and their connections to make sure they are secure and...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...