There is one last point that is very important. If the oil filter is listed under both categories you only need to replace it and the problem is marked resolved in both categories. An example would be Change Oil & Oil Filter and the problem Engine Is Choppy. You'll also quickly discover that a problem may be listed under more than one category and that when you fix it in one place, it will be marked as fixed in all of the categories. If you look up you'll be able to see the amount of rust on the piston rods. This will allow you to see the crankshaft bearings. There is an easy solution for this: drain the oil and pull off the oil pan. If you are not fully equipped with tools for testing, then the pistons can be difficult to diagnose.

Keep in mind the V8 OHV does not have these parts. They can be exposed by removing the head covers. Camshaft bearing covers are easy to inspect. Timing is one of those things you'll have to dig a bit for, but once you have the timing cover off it's a simple matter. Of course, you can just pop the coils cover and take out the coils to determine their condition. Ignition Coils can only be evaluated with the OBD Scanner. The Compression Tester may reveal problems with the Pistons, Rocker Arms, and Push Rods. Rocker arms that are badly rusted are probably finished, and if the push rods are a dark or black color they need replacing. These can cause all manner of engine problems and are easy to inspect. On V8 OHV engines you'lll find that removing the engine head covers will reveal the rocker arms and push rods.

Car mechanic simulator 2015 obd scanner