2 questions
 

1The heat does not work right now at the time. I think the line is clogged up with radiator repair chemicals. What is the best way to diagnosis if it is the heater lines or another problem, and what is the best way to unclog the lines.

2 For the time being is there any thing good to use, until I get time to fix the problem the keep the windshield clear. I was wanting to know if rain x will keep the windshield clear if I put it on the inside or the windshield? I also thought chalk or something that absorbs moisture. Does anyone know something that could help clear the windshield? I don't have a lot of time now I work too much and the time I have off it is always raining so I thought I would ask, if there is any thing to help clear the windshield.

Have you determined the heater valve works? Check this post: http://www.toyota-supra.info/forums/...r-problem.html. It worked for me.

Thanks I will do the test.

How do you by pass the system? Do you put the hard line to the valve or another way? Right now I have the hard line off because it has a small crack in it. Will it set any codes? What does the hard line go to?

I just got rid of the hard line, and used a new rubber vacuum hose to go from the 'tee' at the cruise control module to the valve, bypassing the electro-vacuum switch. Once the car starts, you can see the vacuum open the valve.