Skip the auto shop - Our mechanics make house calls

Q: Why would Oil Pressure Light come on while braking?

asked by on

I read online that 2005 Subaru Legacy GT can go as long as 7500 miles as opposed to the traditional 3000 between oil changes, especially since i am running synthetic oil, which some even say can last longer than the 7500 in normal conditions. I have only let my car go past the 3000 mile recommendation by about 2000 miles, so 5k total and yet my oil pressure light flickers on while braking or idle at stop lights. it turns off while driving. What is the problem?

My car has 112000 miles.
My car has an automatic transmission.

A: Hello. I don’t know how often you check you...

Hello. I don’t know how often you check your oil level, but I would certainly check it now. Turbo-charged engines consume a bit more oil during an oil change interval than non-turbo engines, and it’s possible your oil level is low enough to "slosh" away from the oil pickup in the oil pan during aggressive braking. The oil pressure light flickering at an idle is a worrisome indicator as well, suggesting worn connecting rod or crankshaft bearings. It may be time to get this looked at by a professional. Have a certified technician, such as one from YourMechanic, inspect the Oil Pressure Light in person for a precise diagnosis and repair.

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: When putting oil in it pours back out and the oil pressure light is on.

It sounds as though you either have blown out an oil filter seal, or an oil cooler seal. The oil cooler is a black box on the front of the engine with a couple of hoses going to it. The...

Q: Check Engine and Traction Control lights on

Even though there are two lights on, there is probably one problem. Traction control uses 3 things when detecting wheel spin. It uses the ABS to brake the wheel that is spinning, engine power is reduced, and it uses the...

Q: Low oil pressure light on

Hi there. Sometimes when a mechanic removes the OEM timing chain and installs a new kit, mistakes can be made on reattaching electrical or ground wires to internal components, such as the oil pump. Other causes that might trigger the...

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.