howard (64.12.117.68) - Sat May 10 20:34:58 2008

My 1999 SL2 electric radiator fan does not go on.It only goes on when A/C fan is running?

At times the engine is running warm in the middle of the temp gauge.Overflow tank has run over a few times.

I've done the follwing so far:

Replaced fan relay

Replaced thermostat

Replaced Coolant temp sending unit

Acid flushed the cooling system

Help!!!!!

Reply #1 gabe (32.156.117.114) - Wed Jul 9 04:15:27 2008

Hey Bro the only thing left is PCM.

Reply #2 Ryan Lee (76.252.188.88) - Wed Jul 23 22:09:49 2008

I'm having the same problem, did you ever get it figured out?

Reply #3 Kirk (64.95.214.18) - Tue Jul 29 13:33:47 2008

Ditto. The only time my fan turns on is if the air conditioner is running. I was hoping that there was a relay that I could replace, but I'm not sure if there are two different relays that control the fan motor (ac on vs. ac off). It will get very hot if the ac is not turned on.

Reply #4 Joel (98.200.130.46) - Tue Jul 29 19:39:54 2008

according to the manual for my '98, there is only one relay - it's actually a pretty simple system - two of the four legs of the relay are hot at all times, one leg goes to the hot lead of the fan motor, the other leg of the relay is driven by the PCM.

the only other real connection is the ground for the fan itself, and then the fuse for the fan as well.

The PCM takes into account the water temp and the AC state and turns on the fan whenever it decides it's ok to do so. If I don't run the A/C, the gauge will get up to the middle before trying to kick it on. Some people think that's normal, I think they're nuts. :)

If my description doesn't make sense to you, you can pull up the wiring diagram for the 98 saturn on autozone's website, look under 'chassis electrical' for 'wiring diagrams', then look for 'figure 6'. Or, if that still doesn't work out, try your local library, most of them in my area have Mitchell's repair manuals in the reference section, you can copy the diagram for whichever systems you need from that. But it really is time to break out a volt/ohm meter and start looking for an electrical fault.

Reply #5 tony (76.240.201.214) - Mon Aug 25 18:38:52 2008

Ok I have a 95 with the same problem. I believe that it is the fan motor that is bad. if you have AC and turn it on the fan runs but no AC it does not. If you bang the fan with a screw driver when its up to temp if it starts to run its the motor. If it were not working due to a relay... it would not work on the AC either. could be the thermostat as well as the fan is not suppose to run until the engine gets to a certain temperature.

Going to replace my fan motor and see what happens.

Reply #6 Cynthia (75.130.210.171) - Tue Sep 2 14:27:05 2008

I have a 98 Saturn sl2. When I turn on the A/C the blower doesn't work. Is this a fuse, relay or something more significant? The A/C is good, just no Fan.

PLEASE HELP!

Name:           
E-Mail:         

Optional (please add to our directory first)
Web Link:       
Link Title:     

Message: