1994 Other Saturn Models Engine Fan does not turn on when A/

1994 SATURN
97,000 MILES • 4 CYL • FWD • MANUAL
Avatar
VALIN54
  • MEMBER
  • 1 POST
I have a Saturn SL2 model. The engine fan and the ECTS Coolant Temp Sensor are new. My fan relay works, but I have by-passed it and can remotely turn on my fan from inside the car. I can manually turn on the fan and have to when the A/C is on and I am stopped and idling. I need to know how to troubleshoot the problem of the fan not coming on when the A/C is turned on please.
Apr 25, 2008 at 7:05 PM
Advertisement
Avatar
AUTOFRANK
  • MEMBER
  • 7 POSTS
usually if the coolant sensor is unplugged,the fan will engage.there are two sensors,one for the ecu and one for the guage or dash warning lamp.with a scanner the realy can be cycled for troubleshooting purposes,without it can be a little more difficult.firstly,when engine is hot does fan engage?remember the fan wont come on til engine reaches approx 220 farenheit.the fan doesent usually run continous when the a/c is on.just when pressure is up.
Apr 26, 2008 at 9:08 AM