 Fan Relay Sensor, need help! |
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 Sep 2, 2010 - 10:03 PM
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 Enthusiast  Joined Apr 8, '10 From Las Vegas Currently Offline Reputation: 0 (0%)  |
well, my 97' gt began giving me trouble today for the first time since i've had it. (nov2009)
my temp went up to three quarters on the way to school, i thought it might be cause i was low on coolant. i came home after school, waited a little for my radiator to cool down, refilled the coolant. then i go to drive to walmart, and my temp gauge started going up again. later on at home i let it idle for a while... my temp started rising again and realized my fans weren't activating. i checked the fan fuse, its good. so i'm guessing its the fan relay sensor? but i can't seem to find it, or any diagrams of where it might be. any help please! thanks in advance  |
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Sep 2, 2010 - 11:12 PM
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 Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
change you thremostat, it's bad.
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Sep 4, 2010 - 6:12 AM
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Enthusiast Joined Apr 8, '10 From Las Vegas Currently Offline Reputation: 0 (0%) |
it can't be the thermostat, because there is still flow of water
as i open my radiator and let my car idle, you can see the flow of water going. if it was the thermostat, then there wouldn't be aflow? anyone know the placement of the fan relay sensor?
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Sep 4, 2010 - 11:40 AM
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 Enthusiast Joined May 10, '10 From MA Currently Offline Reputation: 37 (100%) |
the thermostat can be bad and you can still have a flow of fluid.
It happened with my dad's Blazer. For some reason it never overheated, but there was still a flow of fluid. Try checking the relay box, it's under the hood right behind the radiator on the right side. I'm not exactly sure if it's in there, but that would be my guess. |
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Sep 4, 2010 - 2:36 PM
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 Enthusiast Joined Jan 18, '08 From Houston Currently Offline Reputation: 7 (100%) |
To answer you question- Fan1 is @ the main fuse panel by the driver side fender. Fan2 & fan3 is in a relay box behind your passenger side headlights.
To answer your problem- Listen to Dustin. This post has been edited by D-Man: Sep 4, 2010 - 2:37 PM -------------------- QUOTE (presure2 @ Nov 6, 2010 - 6:16 AM) Via FB: fcuking awsome!!! D-man FTW! QUOTE (DEATH @ Nov 11, 2008 - 5:40 PM)  Damn D-Man - most impressive. QUOTE (99GT @ Nov 14, 2008 - 4:04 PM) D-Man's post should be a sticky QUOTE (samir0189 @ Nov 4, 2008 - 10:50 AM) LOL, oh boy, you can always count on D-Man for ridiculously hilarious posts. |
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Sep 4, 2010 - 9:30 PM
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Enthusiast Joined Apr 8, '10 From Las Vegas Currently Offline Reputation: 0 (0%) |
oo okay, i didn't know about the flow, but i now understand there can be a flow with a bad thermostat.
but do you guys still think its the thermostat when my fans don't activate at all? i let my car idle, they don't activate i drive it, my temp starts going up, and they still don't activate ahhhh help! 
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Sep 6, 2010 - 10:01 PM
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Enthusiast Joined Sep 19, '08 From Michigan Currently Offline Reputation: 4 (75%) |
Yes his thermostat could be stuck. Worth replacing.
Now somebody explain to me how a stuck thermostat can cause his fan to stay off. What he's asking for is the location of the temp switch/sensor that controls the fan relay. Sorry, I don't know the location. |
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Sep 6, 2010 - 11:06 PM
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Enthusiast Joined Apr 8, '10 From Las Vegas Currently Offline Reputation: 0 (0%) |
QUOTE (dgbldr @ Sep 6, 2010 - 11:01 PM) Yes his thermostat could be stuck. Worth replacing. Now somebody explain to me how a stuck thermostat can cause his fan to stay off. What he's asking for is the location of the temp switch/sensor that controls the fan relay. Sorry, I don't know the location. yes exactly! |
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Sep 6, 2010 - 11:24 PM
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Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
QUOTE (dgbldr @ Sep 6, 2010 - 11:01 PM) Yes his thermostat could be stuck. Worth replacing. Now somebody explain to me how a stuck thermostat can cause his fan to stay off. What he's asking for is the location of the temp switch/sensor that controls the fan relay. Sorry, I don't know the location. it's in the fuse/relay box in the bay, as d-man already said. to answer your question, the temp sensor for the guage cluster is on the water neck connected to the engine. The temp sensor for the fans is on the bottom of the radiator. now, if your thermostat is bad/stuck closed and not allowing cool water to circulate through the engine then the engine overheats and the guage tells you. When this happens the cool water is still in the radiator and the fan temp sensor (connected to the bottom of the radiator) does not tell the fans to kick on. so again, change you thermostat, it's bad. -------------------- |
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Sep 7, 2010 - 12:29 AM
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Enthusiast Joined Sep 19, '08 From Michigan Currently Offline Reputation: 4 (75%) |
Wow, 2 water temp sensors! That certainly explains it.
Do they have a 3rd water temp sensor for the ECU? 
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Sep 7, 2010 - 9:03 AM
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Enthusiast Joined May 10, '10 From MA Currently Offline Reputation: 37 (100%) |
QUOTE (dgbldr @ Sep 7, 2010 - 1:29 AM) Do they have a 3rd water temp sensor for the ECU? Yeah they do, it's actually internally liquid cooled! 
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Sep 7, 2010 - 11:51 AM
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 Enthusiast Joined Dec 19, '07 From tx Currently Offline Reputation: 22 (100%) |
You really should Listen to Batman [and D-Man in this case] - the man has been on here as long as I have ['03 - don't let the date to the left fool ya] and HE KNOWS HIS SH!T.
Personally I'd have told you to figure it out on your own after the first time you second guessed me  "You're muckin with a G son" This post has been edited by DEATH: Sep 7, 2010 - 11:51 AM --------------------  ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI] PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYO SUSP: Tein/Bilstein/SusTech/ INT: SS-III SEATS/Toyota Hyper Sports EXT: WRC/TRD/404 QUOTE (lagos @ Aug 25, 2010 - 10:13 AM) Its a safety feature so that people like you don't end up killing themselves or everyone around them. Slow down Paul Walker. 6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url] |
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Sep 7, 2010 - 5:34 PM
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Enthusiast Joined Apr 8, '10 From Las Vegas Currently Offline Reputation: 0 (0%) |
i appreciate you explaining twice batman,
i'm just curious and trying to learn |
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Sep 7, 2010 - 9:45 PM
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Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
no prob man, I'm here to help.
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Sep 8, 2010 - 1:18 AM
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 Enthusiast Joined Mar 15, '07 From Tennessee Currently Offline Reputation: 52 (100%) |
D-man was right, and giving good advice? wow... it must be raining in texas.
-------------------- Learned a lot in 10 years... I hardly log in anymore, last login Today Sept 6 2019, and I was forced just to clarify a post. LOL
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Sep 8, 2010 - 10:49 AM
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Enthusiast Joined Dec 19, '07 From tx Currently Offline Reputation: 22 (100%) |
QUOTE (njccmd2002 @ Sep 8, 2010 - 1:18 AM) D-man was right, and giving good advice? wow... it must be raining in texas. It IS as a matter of fact! Has been for days -------------------- ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI] PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYO SUSP: Tein/Bilstein/SusTech/ INT: SS-III SEATS/Toyota Hyper Sports EXT: WRC/TRD/404 QUOTE (lagos @ Aug 25, 2010 - 10:13 AM) Its a safety feature so that people like you don't end up killing themselves or everyone around them. Slow down Paul Walker. 6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url] |
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