How To Test The Oil Pumps
Motor oil is essential for the proper functioning of every car. It lubricates the moving parts of the engine so that they do not rub against each other, and the engine oil absorbs excess heat. Not only must you periodically change the oil and use the proper oil weight, but you must also ensure that the pump that distributes it is in good working order. If you are concerned about possible problems with the pump, you can easily test and repair it before causing permanent damage.
Check whether the low oil pressure lamp is lit or the oil pressure gauge reading is lower than usual. Ticks or clicks in the engine may also indicate a malfunction of the oil pump.
If you find any of the above problems, stop the vehicle immediately.
After the car has been turned off for a few minutes, check the oil level on the dipstick and add more oil if necessary until it is full.
Start the engine again, and pay attention to any indicators of oil pump failure.
If the low oil pressure light stays on but there are no other signs of malfunction, check the oil pressure sending unit on the engine. Potential problems with mechanical transmitter units include poor wiring or plugs of oil entering the unit's holes. Potential problems with the electronic sending unit include wear points on the varistor.
If the low oil pressure light stays on, but the pump shows no other signs of failure, install an oil pressure gauge on the engine oil port and read the pressure while the engine is running. If the pressure gauge shows normal pressure, there is a problem with the sending unit (not the oil pump).
Remove the oil pan from the engine and check the filter on the suction pipe. If it is severely blocked, clean and replace. If you have performed all these checks and the problem indicator remains, send the car to a repairman to replace the fuel pump.
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