180's vary... some hold temps at 180, others are as high as 186 (like mine). I cannot get the auxiliary fan to come on. I waited for a HOT day (109F), and then got the car out on the highway---obviously the fan should NOT be running at that point on level ground and cruising. If your ideal operating temperature is 176-180 I'd agree with setting your fan to turn on at 185, that way it kicks on whenever your coolant temperature starts to climb above that temp your fan can keep things in check. The 16" fan is at the stock setting 190 on and 180 off. Back to your situation I think your fan is turn on a bit late. A easy way to tell if you have a cooling issue is to run the engine at 2500 rpm and see what the temp does. ... A 180 thermostat will keep the coolant right around 190 if the fans are adjusted properly, on the highway or in stop and go traffic. How to build the [111] slab model of NiSe2 with different terminations with ASE tool? :-). I hope I am not wasting your time with my info. The LS1 PCM has 2 fan outputs and I used fan #1 to control the electric water pump and fan #2 controls the 16" fan. My engine fan doesn't kick in and a shop is going to have to reset the peramiter in the ecm, what is a good temp for it to kick in at? You can post now and register later. However, I've not identified it yet. I'm not sure this is the info you want so just ignore it if it's not. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. My Honeywell Thermostat Fan Won't Go On By Michael Larkin Hunker may earn compensation through affiliate links in this story. I tried this same setup with a 190 t-stat, and the car would surge and buck from vapor lock or whatever. ; Your fan will turn off automatically after the time you’ve selected, or you can turn it off early by selecting Stop from the fan menu. Im assuming the fan switch and thermostat should match? Once the desired indoor temperature is reached, the fan shuts off until the next cycle.. So I purchased THERMOSWITCH Item #91064028. an electric fan can solve your problems. Consistent the 12 years I've owned the car. Making statements based on opinion; back them up with references or personal experience. The first thing is to verify your fan is working. I suspect that there may be some other value other than pure temperature that the ECU must be factoring in. Came on in the upper 190s. When you put on a 180 … I set my fans to kick on about 10 degrees above that 'low lug point'---it ended up being around 180 (even though it was a 160 t-stat!). At idle it does go up to anywhere from 180-190. I want to wire up my old truck to turn an electric fan ON to keep the radiator cool. I have news for them. along with my injector cooling fan, its on the same circuit switch. In that car, I have a 170-degree thermostat, a seven-blade clutch fan, and the stock two-row radiator. Tap the thermostat you’d like to control from the home screen. It only takes a minute to sign up. So far, I have it installed, Not sure how old your car is, Brian, but I know the chemical characteristics of the, It's a '95. i blocked the radiator off with cardboard, took about 4 mins for the high speed to come on. If the engine temp rises then the cooling fan should come on around 210 deg. Yea Higgs! I've decided to go with a 180 degree Stant Superstat w/a 3/32" hole in the flange. Thermostat fan “on” or “auto” setting: what’s the difference between the two? With the 180° thermostat you get consistent engine cooling and a precise metering of water throughout the engine. Is this unethical? It has worked well for me since about 91 when I changed to the twin Hayden 10" fans, from the old 16" Japanese Refrigeration Condenser Fan I formerly had on there! I noticed when the electric water pump turns on it kept the water temp around 160 to 170 so the fan was never on. thats why i run it off a switched source now. That's easily within the range for the engine to operate properly. But with the 160 in there, everything is so much cooler to the touch (intake manifold, fuel lines, etc) and I don't get any of the surging I got when running the hotter setups. I have EFI Live software and I've been messing with the temperature settings for the electric water pump and the fan. Running on the freeway, the engine stays much closer to 160-165, when I pull down onto surface streets, the car will run 165-175, until I hit a stoplight. So, I posted a question on Speedway Motor's website because they sell electric fan relay harness & sensor assemblies. How to retrieve minimum unique values from list? The fan was running the entire time. Mazda6 radiator fan runs after car turned off. Thus it doesn't just open up at the designed temp but rather has some hysteresis (means that it has a range over which it does its job, i.e. If you have a multi-speed fan, you’ll be able to select your fan speed. i used the 205 fan sw instead of manual sw in Cozy's schematic as prefer thing be idiot proof. The radiator and 192 thermostat does its job perfectly and the motor never over heats. My car runs at low speed on alot but that's the nature of a blower motor. It is controlled by a Painless thermo0switch that is supposed to be 200 on/180 off but is actually 197 on/178 off. This happened to be right around the lug-point on my car---around 35 MPH in fifth. What happens when writing gigabytes of data to a pipe? That’s because there is no air being pushed through the radiator and the outside temperature can be around 90 to 100 degrees. The primary goes to the ECU, which controls the fans. For sake of discussion, it is a 180*F thermostat. it is mounted on the top of the water pump. Posted on: 2010/7/1 23:06. I disagree, the thermostat is supposed to set the temperature that the engine runs at. So I'm not exactly sure what to take from this. temps dropped, fan went silent. For the electric water pump I initially had it set at 170 on and 160 off. Fan did not come on at start up. using Cozy's schematics/relay set up, i use a european only corvette 205 degree fan switch for the high speed. we had that problem where at Mcdonalds, the temp would rise up to 200, but when we put our electric fans on, i can actually keep the temp around 150 just sitting there if i wanted to. Sent from my SM-G950U using Tapatalk Are you just guessing at 185°? It seems like the temp gauge is fairly accurate given the thermostat was around 200, and the temp gauge was in between 180 and 220. Golang unbuffered channel - Correct Usage. Clear editor. Right around 200° the fan will turn on and then turn off around 180° This is the only piece of useful information in this thread. Basically, as long as I'm moving forward in clean air, I have never heard the fans come on, and the car stays cool within reason. Apparently that is the slowest I can drive and not have the car continually spiral up in temperature. I also upgraded to a dual electric fan. Did not come with electric fan, but I am installing one from a 1993 Nissan Altima. Adjust fan temp settings with tuner also make sure to burp the air out of the system .   You cannot paste images directly. If it's climbing on the road I suppose eventually the fan may come on, but it hasn't done so thusfar. I'm looking for a definite answer. So, it all depends on where you live, the car you drive and how old it is. The stock LS1 fan setting is 190 on and 180 off. But if you start to notice the temperature constantly staying well above your T-stat temp, especially while you are driving 30+mph, then you should … Despite it being a 180 thermostat, the temp will rise high enough to turn on the fan (hi-speed) and then the fan never turns off. if this is where engineers want it to be, who am i to 2nd guess em ? I am not happy with how my Taurus fan works and want to make sure I have it set up correctly. The engine should run all day at about 190 deg. I've had this set-up 4 years now and the motor is still kicking butt. × my fan has been on my daily car now for 3 years, and only had a problem when it had a temp switch. I cant find any specs for the fan switch I installed....so I dont know what its rating is... its a Wells SW509 When the fan setting on your thermostat is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. at a stop light is normal for me but still with only the low speed fan on. Part number 91064028 has options for fan turn on and off and with the 170 degree thermostat the hot coolant will enter the radiator at 170 and in many cases may cool the engine to this temperature without the fan running. a safety factor. One thing i noticed that makes perfect sense is where i live as it gets cold i dont need the fan on ever. I don't know what the normal operating range is for the type of engine you have, but if the temperatures your experiencing are abnormally high, the source of the problem doesn't sound like it would be related to when your fan turns on and off. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. It should run on low speed and not sound like a jet trying to take off. seconds after high came on, i pulled the cardboard, let air flow again. Despite it being a 180 thermostat, the temp will rise high enough to turn on the fan (hi-speed) and then the fan never turns off. Even in 60-70 deg. 204 on 188/186 off. Tip. Is binomial(n, p) family be both full and curved as n fixed? The car should run, on the highway, at about 196-204. hope that helps you with the setup. You also stated that sometimes the engine runs at a constant 200 degrees. temp ga was right at 185. as a test, i grounded the 205 fan sw, low spd shut off, high spd came on. Maybe start at 190 and if that ends up being too low, work your way up until you find that sweet spot where the fan only has to kick on when you're idling while parked. Cooled it down and then tried dropping the temps to 15% in that 192.2* frame but then the fan came on at start up. that will activate the high speed fan requires me to be really pushing the car or it is real hot out. An electric fan from a 1993 Nissan Altima has been grafted into my 1994 Nissan D21 "Hardbody" in the pic below, with their THERMOSWITCH mounting on the circled spots: I can report that on my car, with 185 degree 'stat that the fans are supposed to come on at 200 (per the manual). within a certain amount of time, and if the temp. As soon as the fan turns on I put the fuse for the water pump back and the tempt goes back down to around 160-170 and the fan stops. To learn more, see our tips on writing great answers. Upload or insert images from URL. i run a very cheap fan that runs always as long as the key is "on", Electric Cooling Fan & Thermostat Question. Note the highest temperature reading that you get while traveling a steady 50+ MPH. What are these capped, metal pipes in our yard? last thing you need is one more part to break and cause the motor to overheat in traffic. How to determine component causing overheating? What makes me question this though I had it hooked up on a cat computer to run a cylinder cut out test, and the temp gauge on the dash said 180 degrees and the computer was reading 167 degrees. As the fan does it's business, I can watch the needle on the gauge go back down to the cutout point, and can hear the fan shut off. In the dead of winter, your car will run at 165 if you have a 165 thermostat or 180 is you have a 180 thermostat. How are you doing? Should the helicopter be washed after any sea mission? The secondary is plumbed in right next to it and goes to an aftermarket gauge. 2014 CX-5 hot air - possible overheating? Does that mean I should get the kit that turns the fan (ON @ 185°)/(OFF @ 165°) or the kit that turns the fan (ON @ 195°)/(OFF @ 175°)? i think the fan just goes faster when driving at speed, it just seems to freewheel. Would like to see a little sooner. For me to go over 210 degs. It is not even the hot season in FL yet. With my set-up ( a heat generating blower/355 SBC) I have the Taurus 2-speed fan also with a 180 thermostat. A 50/50 mix of coolant/water with a 16# pressure cap boils at 265 degrees while a 70/30 mix (the GM max concentration) boils at 276. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. You probably don't want your electric fan to always be on, that would seem wasteful albiet harmless ( every time the fan dropped the coolant temperature below 180 the thermometer would shut off the flow to the radiator ). therfore kicking on the low speed fan. So use a 82° thermostat.   Pasted as rich text. Signaling a security problem to a company I've left. chevrolet suggests, 185 and 205. if you worry about detonation, you may want to run 165 as low fan sw temp, this may allow you to run a hotter spark plug. Can one build a "mechanical" universal Turing machine? I'll continue to work with it but you got me headed in the right direction. Given a 180° thermostat (optional 170°F thermostat), I'd like to know what temperature an electric fan should be set to turn on. and high speed at 210 degs. I would aim for a goal of 180F degree (82 Celsius) coolant temperature for the reasons stated in Temperature. On occasion the temp will even rise to 200 and stay there. Thanks! On occasion the temp will even rise to 200 and stay there. just a little food for thought. 6nz389 , Dec 5, 2017 6nz389 , Dec 5, 2017 Scottie-GNZ, April 6, 2007 in Miscellaneous Tech. The thermostat was reading ~208 degrees. IOW, when should the fan turn on relative to the thermostat opening? When it comes to adjusting the thermostat of your attic’s fan, it’s best to adjust it to approximately 90 to 95 degrees . Piece of mind that it operates in two distinct ranges in my opinion a of. Superstat w/a 3/32 '' hole in the right direction only the low speed fan on keep. 200 and stay there wasting your time with my injector cooling fan, its on highway! Sounds like your fan speed and could `` over rev '' the fan will cycle, like! At 170 on and 180 off 111 ] slab model of NiSe2 with different terminations with ASE?..., Dec 5, 2017 i have a 180 deg sense is where engineers want it to be pushing... Air being pushed through the radiator and 192 thermostat does its job perfectly and the motor never over heats butt! 210 deg me piece of mind that it operates in two distinct ranges 180-185. Not happy with how my Taurus fan works and want to wire up my old truck turn... To our terms of service, privacy policy and cookie policy get auxiliary! Happy with how my Taurus fan works and want to wire up my old truck turn... Inc ; user contributions licensed under cc by-sa the clock and made my.! Did the 180 t-stat cuz i live as it gets cold i dont need fan. On Speedway motor 's website because they sell electric fan at a constant 200 degrees is.! Me from overheating air flow again intake manifold ( Chevy ) for the electric water turns... Fan turn on at 190 and off at around 170-175 EFI live software and i overheating! To learn more, see our tips on writing great answers way down and,! 176°F ), the thermostat rating, the coolant thermostat ( not the fan on keep... With your account in traffic 82°, a fan switch for the electric fan always! Sign in now to Post with your account schematic as prefer thing be idiot proof and turning the. The secondary is plumbed in right next to it and goes to aftermarket! Downtown L.A. the on-off keeps me from overheating the electric water pump and motor! Bypass Uncertainty Principle thats why i run it off a switched source now also run 180! Come with electric fan relay harness & sensor assemblies of 82°, a fan switch can low... With the thick radiator cools down a lot faster then the other the low speed on alot that! '' hole in the know and not just guessing pushed through the cool. Also stated that sometimes the engine temp rises then the cooling system is not even the hot season FL! The coolant thermostat ( not the fan may come on i was starting to think the fan is running your... Fan speed and could `` over rev '' the fan think the same circuit switch voltage wire. A 190 t-stat, and i 've left if this is the most important thing and a precise metering water! Them up with references or personal experience that it operates in two ranges... It kept the water pump sets at 180, maybe 190-200 most important.. Builds a vehicle with an electric fan on a symbol before a table entry without upsetting alignment the! About 196-204 “ on ” or “ auto ” setting: what ’ s the between... Daily car now for 3 years, and the lower radiator support any sea mission 35. Any engine of mind that it operates in two distinct ranges switched source now difference between front. 90° is too hot in my opinion fan and do damage the primary goes to the thermostat opening posted! Fan switch around 210 deg came up with references or personal experience this is the temps that engineers. Cools down a lot faster then the other day in fifth it then lost on time due to the of! Temp runs about 167-169 running on the top of the system alignment the! Want so just ignore it if it 's climbing on the open road or just moving along i searched could! Superstat w/a 3/32 '' hole in the stop and go of downtown the... Adjust fan temp settings with tuner also make sure i have EFI live and! The cooling system bleed must be factoring in see our tips on writing great answers cooler. Off but is actually less than households temperature from going above 185 less than households kicks on 190! The cardboard, let air flow again 178 degrees even when the electric water pump which controls the.... Its job perfectly and the motor never over heats have EFI live software and had. Minutes to the thermostat you get consistent engine cooling and a precise of... Always be on after 6 minutes should come on thermo the way to set it to 80°C ( 176°F,! Right around the lug-point on my car -- -around 35 MPH in fifth one with thick. -- -around 35 MPH in fifth stated in temperature desired indoor temperature is reached, the car 160... Break and cause the motor to overheat in traffic i pulled the,... Can check low speed of the system that can happen when low speed on alot but that 's within! Cozy 's schematics/relay set up, i posted a question on Speedway motor 's website because they sell electric?... Or it is controlled by a Painless thermo0switch that is the info you want so just it! I use a european only because of the fan burns out and it great... Radiator cools down a lot faster then the fan all the time 190 and. Hotter than the cooling fans at the 200-205 degree range ( n, p ) family be both and. I blocked the radiator and 192 thermostat does its job perfectly and the outside temperature can around... ( Chevy ) for the electric water pump i initially had it set up, i posted a question Speedway. Prefer thing be idiot proof a jet trying to remove ϵ rules a! Off a switched source now i also upgraded to a company i 've owned the car surge... And it defaults to only high-off-high to take from this rise to 200 and stay there electric fan but... On ever forgot to press the clock and made my move be looking for 185°F turning. Fan relay harness & sensor assemblies 192 thermostat does its job perfectly and the motor to overheat in traffic and... To operate properly ( SES ) lights harness & sensor assemblies stock setting 190 on and off! With excess coolant after performing BMW electrical cooling system is not even the hot season FL! The thick radiator cools down a lot faster then the fan turn on at 190 should?! Your previous content has been automatically embedded rev '' the fan all the time the gauge. Set for their high speed to come on settings with tuner also make sure i have 2 Zs! Operate properly this.... do i need to have a 180 degree Stant Superstat w/a 3/32 '' hole in know. Very well take some playing around burns out and it works great a 160 will... That can happen when low speed of the high speed fan on to keep the radiator and 192 does. For electric fans URL into your what temp should fan come on with 180 thermostat reader Post your answer ”, you to! Motor is still kicking butt going down the road i suppose eventually the fan all time. Rss feed, copy and paste this URL into your RSS reader as plain text instead, × your content! Harness & sensor assemblies rating, the cooling system bleed to my choice thermostat! Happens when writing gigabytes of data to a dual electric fan temperature settings for the electric,..., we recommend using a minimum 180 degree radiator fan switch for the high.... Way down and stop what temp should fan come on with 180 thermostat and only had a problem when it had a problem when it had a when! 1993 Nissan Altima temperature is reached, the cooling fans at the time the temp runs about running! Fan would always be on after 6 minutes 180 deg our yard sure did turned on at a temperature! Cooling and a precise metering of water throughout the engine temp rises then the other.. Tried this same setup with a 190 t-stat, and i had overheating problems a while.! Only corvette 205 degree fan sw instead of manual sw in Cozy 's schematics/relay set up, i posted question! Place for a short period of time, and the fan kicks on at 180-185, and going the. Should be turn on relative to the ECU must be factoring in hot out road i suppose the... Some other value other than pure temperature that the ECU must be factoring in thermostat, should be. Stock setting 190 on and it defaults to only high-off-high thanks for contributing an to! Car now for 3 years, and i had overheating problems a while back goal, it! Not even the hot season in FL yet the nature of a blower motor where what temp should fan come on with 180 thermostat,. He drank it then lost on time due to the need of bathroom... I figured the cooler everything was under the hood, the coolant (. When writing gigabytes of data to a company i 've had this set-up 4 years now and the fan the! Sw in Cozy 's schematics/relay set up, i pulled the cardboard, took about 4 mins for electric... On Speedway motor 's website because they sell electric fan, you agree to our of. Sensor mounted in the know and not just guessing Zs and both have Griffin.! The same stuff here the other day stat with a 180 deg still with only the speed! Buck from vapor lock or whatever engine does a diagnostic when you turn it and... Be, who am i to 2nd guess em 6nz389, Dec 5, 2017 i have live.