My coolant fans r not kicking in and so far what i have done is change engine temp sensor, coolant temp sensor, tstat its 180 fuses r good and relays took fans off tested them and they ran and when ever i turn on ac fans dont run niether turn on im not sure where to go from.here.its driving me nuts oh and its a 1994 lt1 i also checked the hoses all were fine does anyone know if it can be the coolant switch im not sure where it even.is anyone know also the ses light is on

 

4th Gen LT1 F-body Tech Articles

 

Did you check the fusible link that supplies 12V power to the fan relays?

What temperature is the engine running at?

 

not sure where that would be can u help.me out with that.and engine temp runs normal from starts and keeps getting hotter bec the fans dont kick.in it it could go to the red zone but i turn it of way before that like at 240

 

Every possible bit of information, is available in the link RamAir95TA posted. You should be able to narrow it down, from the info on that page.

 

Ok i think im im on to sonething ikeep finding a knock sensor picture and a coolant fan switch picture curious i know the knock sensor is on the passanger side it has a small round tip and the coolant fan switch also said to be on that same side im not sure where the coolant fan.switch might be if i found the knock sensor i have pics of both does anyone know where i can find it

 

You really need to look at the information in the link Joe posted in post #2.

There is no fan switch. Fans are computer controlled by input from the coolant temp sensor in the water pump and a/c control inputs.

 

Yeah thanks im checking everything off as i go
I hope i find something