Why is my car producing its normal power

Mazda Protegé 2000 Mazda protege es 1.8L 125000 miles
When I turn the car on the engine sounds like it’s shaking or knocking but I checked my oil and I coolant and I have plenty and when the I accelerate the power is normal
Sl0th from United States 10 months ago  
SL
2 reports 
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