Skip the auto shop - Our mechanics make house calls

Q: Pinpointing an oil leak - part coming off of the engine toward the back on the passenger side

asked by on

It's toward the back/bottom of the engine, underneath the air filter assembly. It looks like the part is made from aluminum. I'd guess it's part of the exhaust system except I don't know how oil would be in there since it seems to be separate from the engine. A loud ticking sound comes from this unit (I think) when the engine is shut off after it's been running for a while. There is burned/dried oil on a corner of this unit closest to the engine but nothing directly above it that could be dripping on it... Trying to figure out whether that part could be the source of the oil leak.

My car has 85000 miles.
My car has an automatic transmission.

Hello. From your description, it sounds like you are referring to the turbo intercooler. It is common over time for oil to build up in here due to wear in the turbo charger. I usually check the oil in the intercooler. If there is a lot, then the turbo may need to be replaced. I also check the PCV system for proper operation. If it is not functioning, then this will also occur. If you need to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to pinpoint the leak and assist with repairs.

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!
  • Home
  • Questions
  • Pinpointing an oil leak - part coming off of the engine toward the back on the passenger side

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: Would a cam shaft positioning sensor cause my check engine and AT Oil Temp to flash?

The camshaft sensor will cause the check engine light to be illuminated if it is bad. It will not cause the transmission oil temperature light to come on. This can come on if the transmission is overheating, running hotter than...

Q: Early 6.7Ls..Do they really have Turbo problems?

This is a question that will vary widely depending on who you ask and is often times subject to bias. With that being said, however there are some commonly known problems (as with any new model car or truck) that...

Q: Coolant system leak

A common leak on the 3.8 engine is the upper intake manifold. The gasket itself can go bad on it's own, but sometimes the plastic intake will become brittle and crack around the gasket. Do not delay having the leak...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.