Car Questions
RepairPal is your advocate for car care advice and guidance

Oil Light

(1997 Plymouth Grand Voyager)
in Waukesha, WI on December 14, 2010
When engine warms up the oil light comes on and stays on. Have had the oil changed, there is no noise or vibrations from the runs smooth. Could it be a sensor or oil pump problem? (engine light is also always on because of a connection problem with the wiring...have had it fixed twice but it comes back on after a month or two...related maybe?)
Displaying 2 answers & 1 comments
Popular Answer
on May 05, 2015
it could be one of four thingsmiles on the vehicle
The oil pressure warning light comes on when the oil pressure drops below a certain point. This varies from vehicle to vehicle, but is usually somewhere below 10psi which is a dangerously low pressure. If there is a wring problem this can also cause the light to come on, but this is usually intermittent or just on all the time.

What needs to be done is to connect a good pressure gauge to the engine and see what the oil pressure is. If it is actually low this can be caused by a problem with the oil pump, or possibly excessive wear in the engine. If the oil pressure is OK, then diagnosis needs to be done to find why the oil light is coming on when it shouldn't.
on December 15, 2010
Thank you for the quick reply. I had the oil changed at Midas and they didn't note any leakage and I don't know if they would check the oil pressure so will mention that to my sil. I do know there are some wiring issues and that the catalytic converter is ok. I have a code PO1698 which says there is no communication between PCM and TCM. Could this be also effecting the oil light as well as the engine light?
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more
Didn't find what you were looking for?