Engine Exhaust System problems of the 2000 Oldsmobile Alero

I have a 2000 Alero (64025 miles). My mechanic said that I need to replace the intake gasket, a cost of $600. 00 to fix. He told me that he has replaced many of these mostly in Aleros between the years of 2000-2003. This is not the only problem I am having with my car. The motor for the window on the drivers side has been broken for about 1 yr. The Oldsmobile dealership gave me a quote of just under $400. 00 to repair it. Not to mention that I have had the rotors and brakes replace all the way around the car (about 1 yr ago) and about every 3-5 months I have to go in and have the rotors turned. It cost me close to $800. 00 to have the brake and rotors replace and the turning of the rotors are under warranty. . . But I have to take time to do this and it is very inconvenient. Not to mention the car is only 3 years old. . . Oldsmobile should take care of all of these problems. This is costing their customers time and money!.

I have researched this problem and there seems to be too many people whose windows jam than fall down into the door. I have personally paid over $400 two times to have this fixed. Also another incident with this car are the blinker which sometimes work and sometimes don't. Just this week another problem with the air conditioning. The blower is not working therefore no defrost in this cold weather.

I bought the car used in 2001 with 30k miles on it. I bought the extended warranty to carry me over to 75k miles. I first had to replace the ignition. Then I had to get a new fuel filter and fuel pump. I have had to replace the brake pads approx 4-5 times in 2 years. The rotors twice. They both need changed again. The air conditioner had to be serviced because the switch was broke and it was blowing air at all vents including the floor and windshield. Then, the motor went out. At approx 65k miles. A used motor was paid for by the warranty company and installed after sitting at the dealership for over a month. This was in January. At that same time the exhaust had went out. I was told my warranty would not cover it because it was not the catalytic converter it was a piece that hooked onto it. Finally after they replaced the motor the put a new catalytic converter in. Then comes the cd player. It ejects at random and skips. It also gives error codes frequently. Then I started having problems with the lights. The abs light and the trac off light stay on along with the check engine light. I was told the check engine light was on because the fuel injectors were clogged. Well, yesterday I took the car in for a fuel injector cleaning and flush. I also had a tune up, oil change, tires rotated, air filter installed, new fuel filter, and new spark plugs. Still I am having a fuel problem of some sort. The car idles and misfires very badly. It shakes badly enough to make you nauseous. It also misfires when you speed up and sometime sputters like it does not want to go. This was after everything was done. Then I am told it sounds like my catalytic converter is going out again after only 8 months. They should be responsible for these problems. I would not say that but I have done extensive research online and found that every single complaint mentioned the brake system but 50% of them mention the fuel system and several mentioned the engine problems.