97 gt cooling fan issue - TriStateTuners.com :: Home of Tristate Auto Enthusiast

KEVN257 · 04-18-2010, 02:23 PM

So after 20 minutes of idling today my fans would not come on, even when temps would go above normal operating range. however when i turn the ac on the fans come to life. If anyone has ideas of what could be causing this issue it will be appreaciated.

**dangerousatom** · 04-18-2010, 06:28 PM

Bad fan relay or temp sensor ( engine bay fuse box ) ...there will be 2 relays labeled some kind of fan and ac/fan. Obviously the ac one is good. Swap them and see if the temp controlled fan kicks on. If it does there is your problem, if not then it may be the temp sensor ( under intake manifold behind alternator screwed into the crossover pipe ) You will have to drain some coolant to pull it out without making a total mess. If that doesn't fix the problem then it maybe the fan motor is dead.

If your up to it you can also bypass the relay with a jumper....if you dont know what Im talking about or how to do it DONT TRY IT

Go to AREA1320 it will take Ryan or Drake less than 10 minuets to figure out what is wrong. Or come to the Apple B's meet on Wed nites ( thread below ) and I can easily figure it out.

http://www.tristatetuners.com/forum/...ad.php?t=72954

KEVN257 · 04-18-2010, 06:42 PM

well i just picked up the coolant temp sensor, since a few people said it was more than likly that. ill be putting it in tomorrow night and if that doesnt fix it, ill be back seeking more help. thanks for your time.

012.5RS · 04-19-2010, 10:59 AM

did u do as atom said and swap relays? takes two seconds and would save a lot of hassle if thats the problem

04-18-2010, 02:23 PM	#1
KEVN257 Tri-State Aficionado Join Date: Oct 2008 Location: Bethlehem, PA Member #9922 My Ride: 04 Fozz XT, 97 Legacy Gt wagon sold, 92 Plymouth Laser sold :( iTrader: (1)	97 gt cooling fan issue So after 20 minutes of idling today my fans would not come on, even when temps would go above normal operating range. however when i turn the ac on the fans come to life. If anyone has ideas of what could be causing this issue it will be appreaciated.

04-18-2010, 06:28 PM	#2
dangerousatom [TST] Calendar Master Join Date: Jul 2005 Location: Q-town/AREA1320 Member #625 My Ride: 02-04 RS-STi @391whp 02-WRX Wagon @310whp ≈≈≈ Both modded to the hilt w/PPG trans iTrader: (5)	Bad fan relay or temp sensor ( engine bay fuse box ) ...there will be 2 relays labeled some kind of fan and ac/fan. Obviously the ac one is good. Swap them and see if the temp controlled fan kicks on. If it does there is your problem, if not then it may be the temp sensor ( under intake manifold behind alternator screwed into the crossover pipe ) You will have to drain some coolant to pull it out without making a total mess. If that doesn't fix the problem then it maybe the fan motor is dead. If your up to it you can also bypass the relay with a jumper....if you dont know what Im talking about or how to do it DONT TRY IT Go to AREA1320 it will take Ryan or Drake less than 10 minuets to figure out what is wrong. Or come to the Apple B's meet on Wed nites ( thread below ) and I can easily figure it out. http://www.tristatetuners.com/forum/...ad.php?t=72954 __________________ 02-04 RS-STi build /swap To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. 02 WRX Wagon Beater-10/01/11 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Last edited by dangerousatom; 04-18-2010 at 06:33 PM.

04-19-2010, 10:59 AM	#4
012.5RS Tri-State Post Whore Join Date: Nov 2005 Location: Bucks County Member #1071 My Ride: 2001 Stage 4 2.0RS---RIP, 2002 WRX Wagon, 1995 Impreza L iTrader: (1)	did u do as atom said and swap relays? takes two seconds and would save a lot of hassle if thats the problem __________________ Power is nothing without control

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04-18-2010, 06:42 PM	#3
KEVN257 Tri-State Aficionado Join Date: Oct 2008 Location: Bethlehem, PA Member #9922 My Ride: 04 Fozz XT, 97 Legacy Gt wagon sold, 92 Plymouth Laser sold :( iTrader: (1)	well i just picked up the coolant temp sensor, since a few people said it was more than likly that. ill be putting it in tomorrow night and if that doesnt fix it, ill be back seeking more help. thanks for your time.