It sounds like the starter is trying to turn, but it doesn't work. I think maybe the engine needs replacing. Do you do engine replacements?
Slow cranking can be caused by several things. It could be problem with the battery or starting circuit, or the engine could indeed have internal problems. I wouldn’t go that route until you have the vehicle fully inspected by a professional, such as one from YourMechanic. If the problem is indeed the engine, we do replacements.
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