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It depends on your mileage. It's normal for the pressure to read high on start up and then drop some but your numbers are a little low on start up, usually on the high side of 40-45.You could check your pressure with another guage and see if it reads any different. If it does then you should change yours. But if your mileage is running on the high side of 200,000 then it's probably wear and tear. I would be inclined to try a heavier oil, 15-40 or 20-50. This should bring the pressure up and help with lubrication. You could also add something like Lucas to your oil to help with lubrication and pressure. It's also possible the oil pump is wearing out but unless the mileage is below 150,000 it likely won't do much good and a new pump won't like the heavier oil.
If you are unsure of the mileage you could do a compression check. If it's 100 or under the engine is worn.There is still life in it as long as the numbers are close together but it is time to start thinking about the next step.
Replace the oil pressure sending unit its giveing a false reading . The problem is when the engine is cold the oil pressure is low and it takes a little time to build up whem cranking the engine and that sends a signal to the computer PCM /VCM what ever but your 40 to 60 lbs oil pressure is graet its ideal .The unit switches when the oil pressure is high enough to trip the switch inside the sending unit and that is sent to the vehicle control module
Oil pressure is not constant, while idiling the pressure is less than when accelerating. Usually when the oil pressure gauge fluctuates it is a sign of low oil level.
Try changing to a higher viscosity oil, like a straight 40 grade.This might help for a while but it is only a temporary fix. It sounds like the main bearings or oil pump might be defective or just worn out.
Hello. Those oil pressure readings are completely normal for you vehicle. Actually, in a vehicle with that amount of miles, those readings are quite good. It's normal for the oil pressure to rise and fall with engine speed. Keep doing those regular oil changes and you should get many more miles out of that engine.
I have a 99 blazer and ever since I have owned it, it reads lower in pressure when idling, but will go up too 40 while driving. This is normal for the vehicle. If the pressure gets real low, and stays low, it means its time for an oil change.
As long as the pressure goes up when you give it gas, it is fine.
depending on the weather, and how cold it is, oil pressure will run high until it warms up. now if it still runs high after it warms up then its most likely the oil sending unit.
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