Originally Posted by
janaiy
I will check friday if this might be the cause. I am getting tired with my xfire. Every 6 months something is happening. It is relatively hot this summer in Miami, so hopefully I can resolve. How I know its the switch and where in the glove box I can find it and what should be done? Thx for the reply

Just a stab but I had lean on both banks and after removing the air cleaner by lifting up towards the rear of it I saw my vacuum hose had broken on the passenger side of the engine. After putting some electrical tape on to stop the leak, problem was solved.I will be replacing it of course but just happy it worked.