I just don't want to fix this problem, and something else to happen. I have already had issues with the transmission shifting hard. Although a pan drop and filter change seem to have fixed it for now. And how will I know if the used engine I buy will just take a dump after a few miles once it's in my car? And how much will it cost to have the new engine put in. So yea, let's say I get the engine for 800 bucks. How much will it cost me to have it put in...