The normal oil pressure on my Buick LeSabre has been about 65 psi. About a month ago the pressure reading jumped to 85 psi, then a few days later jumped to 130 psi and has been at that reading ever since. I changed the oil filter, but that had no effect. There are no other symptions - there is not even a warning light about the high pressuer - the display just reads "normal". What could be causing this? Could it be the oil pressure sensor? When the engine is not running and I turn the key to "on" but don't start the engine, the oil pressure reads "0". Once the engine starts, the pressure goes right to 130 psi.
have the same problem?
Wednesday, January 9th, 2008 AT 9:10 PM