I have a few questions, i did some searches and could not find all the info. I have a 91 RS L03 which I believe needs a new fan switch. My first question is:

1. Is a 1987 Buick Regal fan switch (vin 7) a direct replacement for my fan switch?(or would I have to get a wiring harness or mess with the wires)

2. Is the hypertech easier to install than the Buick one?

3. I read that a Grand national switch will work also would that be a direct replacment for my current fan switch

4. What chip would you recomend i go with (I want it to kick on between 200 - 210 and off at 185 - 190)

 

well i believe mostly all the fan switches just have one wire/one connection...

that said they would be the same to install..


umm how many fans do you have? i think if you just have one it works on a temp sensor and the computer.

 

I only have one from what i read about the hypertech chip I thought it said that single fans are controlled by a fan switch and double fans are controlled by a fan switch(on the drivers side) and the passanger side is controlled by the computer. I'll have to recheck this to make sure though

 

well i have dual fans and the passengers side is controlled by the fan switch, and the drivers is controlled by the computer.. i have a 91 formula..

 

Oh yeah your right I got the fans and what contols them flipped around for the dual fan set up.