Some say my oil pump my be going out. How do you you know is that the problem. What way i can check to see if the oil pump in going out
Does the oil light come on when you turn the key on? That indicates the pressure sensor is working. if you loose pressure while the engine is running the light will come on.
Check the fuel filter, s not blocked.
That is an odd bit of advice. If the oil pump was working poorly enough to cause a noticeable difference on engine performance, then you have already ruined the engine.
Although not always the case, typically if you are losing power as you increase speed, it is a fuel problem. Fuel pump could be going out. Inline fuel filter could be dirty and restricting fuel flow. Intank (gas tank) filter could be clogged and restricting fuel flow.
Regarding your oil pump, you can check to see if it is working correctly by installing an oil pressure gauge. You might check to see if your engine has solid lifters or hydraulic lifters. If it has hydraulic lifters, your engine will develop a tapping noise when the oil pressure is low because the lack of oil pressure creates a lack of hydraulic lift in the lifters and so they collapse creating a gap between the lifter and the rocker arm. This gap means that the rocker arm comes off the lifter and then smacks the lifter when coming back down resulting in the "tapping" noise mentioned.
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