Now the engine knock went away, but the engine overheated, the check engine light came on once, and the steering wheel is very hard to turn.
Today our 1995 Jeep Cherokee started making kind of a knocking noise. At first I thought it was something in the front, but then we saw that the oil pressure gauge was all the way to zero! We checked the oil, and the engine was completely dry! We put 4 quarts of oil in and filled it up, but it still made the noise. My mom thinks it's a rod and the engine might be ruined. What could it be?

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