Skip the auto shop - Our mechanics make house calls

Q: What would cause an engine oil pan gasket to go out at 120,000 miles on a 2008 H2 Hummer?

asked by on

I am being told my engine oil pan gasket needs replacing with only 125,000 miles

My car has 125000 miles.
My car has an automatic transmission.

A: Hi. The best way to explain why an oil pan ...

Hi. The best way to explain why an oil pan gasket would start leaking is due to heat from running the engine which causes expansion and the engine cooling when not running which equals shrinkage. Over time, things just wear out. There is a possibility that the oil pan just needs to be tightened. Check all oil pan bolt and make sure they are not loose. Keep in mind that this does not always fix the leak. The truly best thing to do is if it is leaking, is replace it with a new gasket. If you are looking to have this done, a certified professional from YourMechanic can come to your location to perform this service at your convenience.

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: Water in oil

Hello. If the engine has never been overheated then it is typically caused by a failing intake manifold gasket. This is very common on this engine. In order to determine what the issue is, a mechanic would typically do a...

Q: #3 Misfire engine light

Yes, it can be an electrical issue. A misfire at a particular cylinder can be caused by ignition, fuel injection, mechanical issue, or vacuum leak. I'm curious why none of the dealership techs repaired it. Faulty sparks plugs, coils, or...

Q: Shifting problem

Hi, thanks for writing in. If I am understanding your question correctly, it sounds like you may be having a shifting problem. This may be related to many different things such as a faulty TCM (transmission control module), low transmission...

Related articles

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...
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...
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.