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.
My problem is not a constant, one day the car runs like a dream and the next, it doesn't. While driving or idling, the Oil Pressure well go from 30 psi to around and above 90 psi. Then it will stay at 90 and then suddenly drop to below 30.
Also the car will just die. It can be while I'm driving or just letting it idle. It will act as if it has run out of fuel, but I'll have a full tank. If I'm driving, sometimes I can feather the gas pedal and bring it back, but other times I just have to pull over and give it gas and hope that it works.
I've replaced the fuel pump, fuel injectors and the fuel filter. I just don't know what to do with it anymore.
- 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.
or it could be just a bit of dirt on the pressure switch,or it just takes its time to get around the engine see how it goes in the next couple of days.
not enough info, what engine, fuel injected? if so what type, multi port, or throttle body? oil pressure is not the problem, it could have a Hi-Perf. oil pump. fix the leaks, they will make a horrible odor. and coolant leaks will make it run hot.
Hi. Your symptoms are a strong indication of major sludge build up in the block region. This type of thick build up will clog up the oil ports, thus, reducing the normal flow of lubricant throughout the engine. This will cause fluctuating oil pressure, as well. Although this issue is a common cause of your symptoms, there are others. The next cause of fluctuating oil pressure will be a failing oil pump. This device can fail mechanically(gear failure). When this occurs, the engine oil will not circulate properly, thus causing the symptoms you are experiencing.
In conclusion, This type of problem will require you to administer a manual oil pressure test. This will confirm the oil pump failure. If the pressure test reveals that, indeed, the engines pressure readings are low, the oil pump will be the culprit. I recommend to administer a engine flush, and change the oil pump and oil pump screen, as well. Now, if the manual pressure test reveals that the pressure is optimal, this will indicate that the presser switch(sending unit) is faulty.
DIAL IN CAB COULD BE AT FAULT, NEED TO GET ANOTHER DAIL GUAGE AND CONNECT TO SENDER, IF SAME COULD BE SENDER, IF STILL THE SAME, PRESSURE VALVE IN BLOCK STICKING DUE TO DIRT OR U/S, OR AT WORSE !!! ENGINE WORN, THIS WILL BE CONSTANT IN MOST CASES, FAULT IN GUAGES ARE NORM INTERMITANT.
LOTUS
Either the sending unit,(this unit is on the motor)is malfunctioning, or your engine oil pump may not be providing enough pressure. This could be due to sticky oil pressure bypass valve,,worn out pump,,or worn engine main bearings. If it is just a case of worn engine oil bearings,this is usually indicated by high oil pressure when cold,,but low oil pressure when hot,.i wouldn't worry to much, since most engines suffer from this same complaint and doesn't harm the engine any.
×