I’m driving ford Taurus SES 2002. it will ONLY happen after driving for about 10 to 15 minutes. once the engine is at idle ( below 1000 RPM ) it will start flickering and sometime just stay on until I push the Gas pedal.
It started right after I changed my oil for the first time after bought the car (Jan 2014). so I changed the oil couple of months ago and about 1 week later it started acting like this. I brought the car to the same mechanic and they told me it’s because of the oil pump (after investigation). I called different mechanics and they say different things, like they said it might be because of bad oil filter that they installed (NOT craft). so I took the car to the lube stop and after checking the oil filter they said it was so loose and I had lost half of my oil. they fixed it and had it tight , pure some oil to the engine. I thought if the problem has been solved but after driving for about 10 minutes the problem came back. I changed the oil pressure sensor with my friends car and I still have the problem !
please someone help me figure this out.
thanks
With the engine running at normal operating temperature(warmed up) with the correct oil and level the engine needs to have 10 psi of oil pressure per 1,000 rpm. So it needs to see 20 psi at 2,000 rpm, 30 psi at 3,000 rpm, 7 psi at 700 rpm and so on.
In most cases the issue is caused by a failing or weak oil pressure sensor, they tend to leak internally and give false readings. Replacing t with a NEW one would be a good first course of action.
If you have the ability to fix a pressure gauge on it to see for certain what the pressure is, so there would be no guessing and would determine if the oil pump was going out or not.
If the oil pump needs to be replaced you are looking around 3 to 4 hours labor for this job.
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