Skip the auto shop - Our mechanics make house calls

Q: Gear goop everywhere from driver side, near the axle/boot/frame

asked by on

Transmission was replaced 2 mos ago. There has been a popping noise when putting the car into drive. Oil is good, tranny fluid good but a very large amount of gear goop leaking and resting on axle and frame. The leak is a Vaseline type consistentcy. I'm trying to pinpoint which part is needed or which direction to start troubleshooting or repair or what type or mechanic or repair shop to contact. Would also like to determine if the transmission shop is responsible for the problem/repair. Is it the axle? The joint? The boot? Rack? Pinion? Gear box? I need direction please and thank you.

My car has 140000 miles.
My car has an automatic transmission.

A: This is a common sign of a failing CV joint...

This is a common sign of a failing CV joint. A CV (Constant Velocity) joint is a shaft that connects the transmission to the wheels, essentially transferring the power from the drive train directly to the wheels. The CV joint is packed with a special grease and sealed tight with the rubber or plastic boot, that is held in place with two clamps.

The most common problem with the CV joints is when the protective boot cracks or gets damaged. Once this happens, the grease comes out and moisture and dirt get in, causing the CV joint to wear faster and eventually fail due to lack of lubrication and corrosion. When the CV joint becomes damaged or worn, you may hear a clicking or popping sound coming from this area. You may also notice grease spatter around this area as you describe.

To avoid any unnecessary repairs, I would recommend having an expert from YourMechanic come to your location to diagnose your issue firsthand and service your CV joints as necessary.

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: New power steering pump leaking

Hi there. If the new power steering pump is failing, then it is defective and needs to be replaced. Double check to see that the lines are installed correctly and are tight. As for the battery, it may just need...

Q: Engine oil leak

Hi there: There are several oil lines, gaskets and seals near the front passenger side of the vehicle that could be causing the oil leak, including the crankshaft seal, or oil cooler lines. It's also possible that the oil that...

Q: Which brand of new front CV drive axle is best for replacement at 80k miles? 2007 Toyota FJ Cruiser

Hi there - the real question is whether you are buying (from any parts house) a "rebuilt" or "remanufactured" axles/CV joint, or a new one. If it's a new one, is it made by an Original Equipment Manufacturer (OEM) such...

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...
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...