At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
It sounds like you have some internal engine wear. What causes the pressure to drop when you are at a stop is the engine RPM drops. When the RPM drops the oil pump does not turn as fast, when the oil pump doesn't turn as fast there is less oil volume, when there is wear in the bearings and even in the pump itself there is more volume of area that needs oil than there is available causing there to be pressure loss. The only fix for this is to replace the worn parts either by rebuilding your current engine or replacing it with a good salvage or new engine.
indicates a problem oil pressure sender unit
have the oil pressure checked using a mechanical pressure gauge and if OK then replace the sender unit or gauge
check the oil level and coolant levels. If ok then have the oil pressure checked with a mechanical gauge if ok the check and replace the oil pressure sender unit and/or wiring to the gauge.
It sounds like the oil pressure switch has failed. It is only an on/off switch that trips at about 15 - 17 PSI, the reading displayed on the dash is created by the computer based on the pressure switch being closed and the engine RPM.
If your oil pressure is dropping to zero at an idle, then I would quit driving the vehicle. It is very possible that the engine is low on oil. Or that the oil pump is going bad. If you continue to drive the vehicle, you could ruin the engine. There is a oil pressure sending unit that could be bad. But if the oil pressure goes up when it is above an idle, then the sending unit is probably ok.
You need to put a mechanical gauge on it to read actual oil pressure, sometimes the sensor is wrong, have seen the gauge be off (even on newer than yours). The first thing anyone would do is the mechanical pressure test with a screw in oil pressure gauge. That would be my advise.
the sensor is on the side of the engine block. there's two thing that monitors oil. a pressure switch turns you oil light on and you oil pressure sensor the operates your gauge, start with your sensor. that is near you oil filter that is where it gets it pressure reading from
×