Cadillac Owners Forum banner
1 - 5 of 5 Posts

· Registered
07 Silver V Sport Susp.
Joined
·
147 Posts
Discussion Starter · #1 ·
Plugged passenger fan up to car and never turned on. Car temp ran up to 210, sigh. Will have to get battery into fluke meter and ring out lines and check to see if power is being applied. I thought they were supposed to come around 190 deg. Do u think both need to be connected?
 

· Administrator
'05 CTS-V
Joined
·
9,370 Posts
The ECM turns on the low speed fan at 202F, and the high speed fan at 220F. The fans come on under various other conditions - see attached.
Despite what the FSM says (I've quoted those same numbers myself here somewhere), I've been told by the guy that tuned my car that the setpoints were actually higher. I can't remember now what they were, but something like 218 and 226. He said that was pretty typical of every LS engine he had tuned.
 
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top