Rattle goes away when engine is revved and drove 2 miles home with no problem, but still there on idle.
SOURCE: 1992 ford tempo engine rattle
Having the harmonic balancer replaced today on my 94 topaz, rubber has broke in balancer
SOURCE: Engine knocking on and off
inspect the harmonic balancer.
When the crank turns there is a rubber buffer between the pully and crank portions of the balancer that could have let go causing an engine knock like noise.
SOURCE: #5 cylinder misfire
I have a corolla and had #4 cylinder misfire also diagnosed at autozone. After changing the spark plugs, problem persisted, along with the same error code, so they recommended changing the spark plug wires, and that is what fixed it. I would have changed the rotor cap too, but was low on dough. Glad that was not the problem.
SOURCE: Engine Rattling
Try checking the heat shield on your exhaust system. You should have one over the manifold and one over your cat converter under the car.
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