Three different problems with the alero

[greenalero]

Problem 1: The e-brake light turns on and off randomly (mostly just stays on) when the e-brake is not engaged. I did a search and found nothing on this, so I was wondering if you guys had this problem and know the solution for fixing it.

Problem 2: The fuel guage needle does not work properly. The tank will be full or have plenty of fuel in it and the needle moves up and down at random. I did a search on this and found that its a common problem, but everyone says they have this problem. Although, there is no clear solution posted on how to fix this problem. I was wondering if someone can clearify this for me.

Problem 3: Water leaks into the car on the front passenger side and in the back on both sides. This has been going on for a long time and I researched this and found this as a common problem. I was told that leaves clog up the drains under the cowl and water fills into the HVAC unit. Well I took the cowl off and I could not visually see anything clogging the drains. I also filled up the cowl area with water and the water flows just fine out the drains and it does not overflow into the HVAC opening. I dont understand how water can be getting inside the HVAC opening and into the car. Could there be another way the water gets in?

Thanks in advance for the help! ~ Chris