Q: Low Oil PSI

asked by on

I bought a 05 Nissan Altima Se-r a few months back. It has a v6 3.5 liter motor with 97,555 miles in it. I got an oil change at 94,949. Recently I've noticed when I start the car the psi is just about 90. After driving 3-4 miles the psi drops to around 30 but will get up to 60 when my rpms are 2,000. My main concern is that when I'm stopped at a stop sign or red light, the psi drops to 0 and my oil light comes on. Once I accelerate gently the psi jumps back to about 30 again. This first happened about two weeks ago. I checked my oil level after it happened and the levels were fine. I checked again today and the level was very low. I know I'm due for an oil change soon, but I wasn't sure I'd that would be the cause of the problem or if it's something more serious, I'm thinking oil pump or possibly catalytic converter. The only reason I say catalytic converter is because my exhaust fumes have also been smelling terrible since this has started. Thanks, Roger

My car has 97555 miles.
My car has an automatic transmission.

Hi Roger. Although it is possible that your catalytic converter might be wearing out, it’s most likely not the source of your oil pressure problem. Typically when an engine develops excessive sludge (caused by carbon deposits from burning gasoline) will collect on the oil pump pick-up screen and restrict oil pressure. When this happens, it is best to replace the oil pump to ensure proper lubrication, keep the engine cool and operating at optimal temperatures and performance. The reduced oil pressure could also be due to the wrong size oil filter being used. I would recommend having your oil and filter changed again and see if the pressure problem resolves itself. If not, please contact a professional mechanic to complete an oil pressure inspection, so they can pinpoint the source of this problem and recommend the right repairs.

Was this answer helpful?
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

Get a quote

What others are asking

Q: Q: Gear shift lever stuck in park

Hi. Your shift lock switch may be engaged. It will be in one of two places. On the top of the steering column of the instrument cluster or right by the shifter itself above the Park icon on the shift...

Q: P0171 & P0174

These two trouble codes are both related to the oxygen sensors located after the catalytic converter detecting that your vehicle is running lean. There could be a fuel pressure problem, vacuum leak, a vacuum hose left unplugged, an intake air...

Q: What does the"car rising visit workshop"mean?

Hello there, thank you for asking about your 2005 Mercedes-Benz E500. It appears that there are two separate messages happening in your case. The first one is the message that reads "Visit Workshop!" which simply just means that it is...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...