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What causes an oil pressure reading of nearly zero after engine warms up Chevy 350 doesnt leak or burn oil?
Wiki User
∙ 18y ago
A bad oil pump will casue no oil pressure and/or a bad oil filter Answer #2: If the oil pressure is up when the engine is cold but drops after the engine warms a bit, the bearings are worn and the oil pump is not engineered to pump enough volume to keep the pressure up once the bearing tolerances get that worn. Try using a heavier grade oil. If you have been using a 5 W 15 oil, go to a 10 W 30. If you've been using 10 W 30 try a 15 W 40. If that doesn't work try an oil thickener. You might be able to squeeze a little more service out of a failing engine if you have a thicker weight oil. If the oil pressure is up when the oil is cool, it's not the oil pump. pressure sending unit
Wiki User
∙ 18y ago
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What causes engine oil pressure gauge to act erratically on 98 ford explorer?
Assuming that the engine oil is at a constant pressure, look at the oil sending unit. A bad sending unit or loose wire connected to it can cause an erratic oil reading.
What is the reading of oil pressure gauge before engine starts?
Oil pressure shouldn't register at all until the engine starts and builds up pressure.
What causes air flow into an engine?
Atmospheric pressure
Purpose of an oil pressure sensor?
The oil pressure sensor sends a reading to the gauge so you can moniter the engine's oil pressure. No oil pressure means the engine is in big trouble.
What causes inaccurate readings in electronic oil pressure gauge on a diesel engine?
Most likely the problem is with the Pressure Sensor in the engine block.
What causes oil pressure drop when engine has heated up during drive?
The oil gets thinner. It is normal for the oil pressure to drop after the engine has reached full operating temperature. If you have from 30-40 psi pressure when the engine is hot then that is normal.
What causes a engine knocking noise when you are accelerating and the engine is warm doesnt do it when engine is cold?
Most likely needs a tuneup done. Check the timing and change the normal tuneup part.
Does a 2000 dodge caravan have a oil pressure circuit protection?
If you are asking if the engine will shut off when the sensor does not detect oil pressure, the answer is no. It will run without an oil pressure reading.
What makes Oil pressure drops when ac goes on?
the ac slows the engine, the lower idle causes the lower oil pressure
What happens to the efficiency of car engine if the muffler is removed?
Any engine needs back pressure to run efficiently. That is what the mufflers do, they create back pressure. So, by removing the muffler(s), you have stopped the back pressure, which in turn causes the engine not to run efficiently.
What is it that makes a car engine work?
Combustion is the chemical reaction that causes a car engine to work. It is produced by fuel combining with oxygen which causes pressure and heat to turn the crankshaft of the engine. This essentially gets all of the parts of the engine moving.
What causes an engine to surge?
we have a gas engine jenbacher 1006kw.we face a black shutdown due to exhaust back pressure high.
