Skip the auto shop - Our mechanics make house calls

Q: Looks like grease spots on lug nuts

asked by on

Second time it has happened and it's very confusing for me. First time was on the front passenger and second time on the rear driver. It's a wet spot maybe grease but it's only been one that I have seen it on.

My car has 91426 miles.
My car has an automatic transmission.

A: This is quite possibly a bad wheel bearing ...

This is quite possibly a bad wheel bearing seal. When these go bad they can leak wheel bearing grease which will eventually be flung everywhere as the wheel rotates. I would recommend having an expert, like one from YourMechanic, to come to your home to diagnose the leak and help you repair it.

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・Save up to 30%

Get a quote

What others are asking

Q: What is the best way to replace the catalytic converter?

The y pipe for the catalytic converters connects to the exhaust manifolds near the rear of the engine. There's a transmission crossmember that needs to come out and a couple of brackets, but swivel sockets help out a lot in...

Q: So hard to fill the tank, gas pump always shuts off

The click noise you are hearing is the fuel backing up in the fill tube and causing the pump handle to turn off as a safety precaution to keep fuel from coming out and spilling or getting you covered in...

Q: A rotational sound i cant figure out

Hello. This can be caused by a few things. I usually check the tires first as any uneven tread can cause a noise like this. If any of the tires are questionable I rotate the tires to see if the...

Related articles

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...