Between 1000 to maybe 2500 rpm it feels like the clutch is slipping, or not engaging all the way. However, my car has almost 50k on it but the clutch was replaced at about 15k miles. Could it be the spark plugs? I may have gotten some into the engine, i didn't go through a puddle just TONS of rain. Could that damage the spark plugs and create the symptoms I'm feeling or is it something else?