Coolant Fan Relays (#1, #2, & #3)
01-01-2006, 10:24 PM
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Coolant Fan Relays (#1, #2, & #3) 1995 Pontiac Trans Am LT-1 151,000 miles
Over this holiday break, I have taken some time to look at my cooling system. I replaced my thermostat and flushed and filled the system with 50/50 green stuff. I only have a chilton so I need more information. My fans turn on at 230. If they would turn on at 210 I'm sure that I would be fine. In my relay panel, there are three coolant fan relays (Coolant Fan #1, Coolant Fan # 2, and Coolant Fan # 3). I am thinking that one or more of these relays are not working properly or one of them is not getting the signal from the sending unit.
Does anybody know the sequence of how these relays work together? My guess is that one of them is for when A/C is running, one is for 210 degree fans, and the other is for safety (>230 degrees). But I don't have any manuals here other than chilton's. They don't even mention that there are 3 relays. Any help would be greatly appreciated.
Over this holiday break, I have taken some time to look at my cooling system. I replaced my thermostat and flushed and filled the system with 50/50 green stuff. I only have a chilton so I need more information. My fans turn on at 230. If they would turn on at 210 I'm sure that I would be fine. In my relay panel, there are three coolant fan relays (Coolant Fan #1, Coolant Fan # 2, and Coolant Fan # 3). I am thinking that one or more of these relays are not working properly or one of them is not getting the signal from the sending unit.
Does anybody know the sequence of how these relays work together? My guess is that one of them is for when A/C is running, one is for 210 degree fans, and the other is for safety (>230 degrees). But I don't have any manuals here other than chilton's. They don't even mention that there are 3 relays. Any help would be greatly appreciated.
