2002 Pontiac Grand Prix

Engine Mechanical problem
2002 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 146000 miles

My first problem is the most severe. It started out leaking a little bit of oil, then within 2 weeks, it was a deluge. When you put the oil in, it comes right back out from about the midpoint of the engine. I checked the oil pan and the problem is not there. I am wondering what it could be, a gasket or something easy, or more severe like a cracked piston head. It looks clear, not foamy, so I am pretty sure it is not mixing with any antifreeze. On to my second problem. When the car has been driving for a while and the engine warms up, the transmission starts to shift really hard, sometimes physically jolting the car in the first 2-3 gears. Sometimes when you turn the engine off for a minute, the problem stops, other time it does not. Thank you for oyur help!
March 13, 2010.

If you are talking about engine oil in question 1, then there has to be a major gasket leak or hole in oil pan.

Get problem 1 fixed first, if is losing oil that fast you will sieze the engine.

Mar 14, 2010.