Q: OIL CHANGE PROBLEM - 2009 PONTIAC G6 V6 3.5L

asked by on December 22, 2016

After the car was warm from driving for about an hour I completely emptied the oil, changed the filter, and refilled the car with 4 quarts of oil. I drove it a few blocks then checked the oil level and it was perfect. The next day after driving about a half hour oil is now showing extremely high on the dipstick. This happened last time I changed the oil as well. Any ideas why? The book says 4 quarts is the correct amount. Should I take some oil out? If so it would have less than 4 quarts... Any input is appreciated. Thanks!
My car has an automatic transmission.

Oil Pressure Sensor Replacement $88.87 - $220.77 Get a Quote

Hi There, There are a few different possibilities at play here. Your oil pump has a pressure relief valve that can sometimes get stuck and cause the oil pressure to remain higher than normal for an extended period of time. The other possibility may be a slightly different viscosity of oil may have been used which can increase oil pressure. Lastly, you may have a malfunctioning oil pressure sending unit which may simply providing false readings. I would recommend having a professional from YourMechanic come to your location to take a look at your car to narrow down what may be causing such high oil pressure.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

Automatic position in dualogic doesn't work properly

Hello! I'll be happy to help. A common component on your particular vehicle that fails is the gearbox communication unit. When they fail it will cause the transmission to shift into neutral without command. Fiat is assessing this problem and...

I was just told that a tensioner or pulley could have caused my alternator to go bad and if not replaced could make the new one go

Pulleys do go bad because the grease in the pulley bearing dries out, the ball bearings and bearing races get pitted and then the pulley becomes noisy. Sometimes, the pulley will actually seize. However, it will be EASILY evident if...

Can't find input speed sensor for 2009 Grand Cherokee. Code p2767.

The input sensors are part of the transmission electrohydraulic control unit mounted on the right side of the transmission.

All my dashboard lights came on my Audi Q5 and the emergency brake comes on it’s own

What you are describing stems from an electrical malfunction, possibly "global" in nature, that is affecting multiple systems on your car. To resolve that, an electrical diagnostic will have to be performed. YourMechanic offers mobile electrical diagnostic services. If you...

Hi I have a 2006 mercedes benz e350 how to reset the ESP light?

If there is a problem in the system, You will have to read the codes and correct the fault for the light to go out. However, If the ESP light has come on after you have replaced a battery or...

My brake lights are not working, fuses are good

It is possible both bulbs are burned out. The filament in each bulb should be tested with an ohmmeter. The bulbs can also be powered off the car to see if both filaments work but be wary of short circuits...

What can be causing my van to leak coolant?

Hi there. Check the coolant hoses and see if any hose are loose. If they are loose, then they will need tightened up. Check the coolant reservoir and see if it has a crack or loose hose to it. If...

Been hearing a knocking noise when i hit the breakes and this morning it wont start

The first thing to check is to see if the anti-theft light is on when you are trying to crank the car. If it is, then try and have someone give you a jump start to raise the battery voltage...

Is the 2009 Sentra 2.0L a timing chain or timing belt? Also when would that need changing?

Hi there. One of the cool things about Nissan four cylinder engines is that they have a timing chain as opposed to a belt. This helps to extend parts life and reduce internal engine failure. The key is to stay...

Related articles

The Best Used Cars to Buy for Occasional Drivers
Not Not everyone relies on their car on a daily basis. Maybe you aren’t the type that deals with a daily commute, and running from here to there constantly. If that’s the case, you may be looking for a car...
Understanding the Pontiac Oil-Life Monitor and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Pontiac Oil Life Monitor (OLM) indicates when and what service your car needs.
How to Buy a Classic Pontiac
Whether you want to buy a classic Pontiac for yourself or as a gift, here are some tips on buying one for a great value.