Radiator Fans Not Coming On? - LotusTalk

Paladin360 · 10-16-2006, 01:35 PM

Apologies if this has been covered, I couldn't find any posts on the topic.

I have an 05 Elise and during a rare warm and sunny day in Seattle last week, I noticed I was running a bit hot (200-208F). It wasn't hot enough for major concern but I did turn off the A.C. What I did noticed was the lack of radiator fan noise - sure enough the buggers were NOT coming on. They are noticably loud so that lack of sound indicated to me an issue as I've had them coming on at lower coolant temps previously.

- Has anyone had trouble with this?

- What fuse box location houses the fuses for the radiator fans?

- Any other words of wisdom to consider before either wrenching on this or taking it into the dealer for service?

Many thanks in advance. I've used many of your "How To" posts already (Speaker and Larnari Exhaust Installations).

Cheers,

-Dave

Randy Chase · 10-16-2006, 01:37 PM

AC can help cool the car down.

Check to make sure the connectors are plugged into the fan control box. It lives on top of the front passenger wheel liner. The connectors can easily come undone.

ChrisB · 10-16-2006, 03:33 PM

Quote:

Originally Posted by Paladin360

Apologies if this has been covered, I couldn't find any posts on the topic.

I have an 05 Elise and during a rare warm and sunny day in Seattle last week, I noticed I was running a bit hot (200-208F). It wasn't hot enough for major concern but I did turn off the A.C. What I did noticed was the lack of radiator fan noise - sure enough the buggers were NOT coming on. They are noticably loud so that lack of sound indicated to me an issue as I've had them coming on at lower coolant temps previously.

- Has anyone had trouble with this?

- What fuse box location houses the fuses for the radiator fans?

- Any other words of wisdom to consider before either wrenching on this or taking it into the dealer for service?

Many thanks in advance. I've used many of your "How To" posts already (Speaker and Larnari Exhaust Installations).

Cheers,

-Dave

I don't have the owners manual in front of me at the time, but IIRC, the fans don't come on until the temperature reaches 208. At that point they come on half-speed. At 217 they come on full speed. Or, if you turn on the AC, I believe they come on full-speed.

ace10 · 03-29-2007, 12:00 PM

first chance to experience higher temps this AM. mostly stop and go driving <5MPH for about 30 minutes. gauge kept creeping up to 207/208 then dropping. i must admit that the heat plumes coming from the front were a bit scary.

should i be worried? air temp was 50 degrees +/-

Randy Chase · 03-29-2007, 12:02 PM

I don't think it is anything to worry about, but I am surprised that at 50 degrees it got that warm. Stop and go for an extended period can certainly make the temps climb. Did the fans come on?

ace10 · 03-29-2007, 12:20 PM

couldn't hear the fans, but i was in the middle lane surrounded by much larger vehicles. i'm assuming (hoping) that the plumes were the fans coming on.

i've driven the car relatively hard in 30 degree warmer weather and not seen temps rise above 200. i'm going to keep my eye on the gauge.

10-16-2006, 01:35 PM	#1 (permalink)
Paladin360 Registered User Join Date: Oct 2006 Posts: 2	Radiator Fans Not Coming On? Apologies if this has been covered, I couldn't find any posts on the topic. I have an 05 Elise and during a rare warm and sunny day in Seattle last week, I noticed I was running a bit hot (200-208F). It wasn't hot enough for major concern but I did turn off the A.C. What I did noticed was the lack of radiator fan noise - sure enough the buggers were NOT coming on. They are noticably loud so that lack of sound indicated to me an issue as I've had them coming on at lower coolant temps previously. - Has anyone had trouble with this? - What fuse box location houses the fuses for the radiator fans? - Any other words of wisdom to consider before either wrenching on this or taking it into the dealer for service? Many thanks in advance. I've used many of your "How To" posts already (Speaker and Larnari Exhaust Installations). Cheers, -Dave __________________ ------------------ -Paladin360 '05 - Elise, Sport, Tour, StarShield, Hardtop '00 - Saleen S281SC #809

10-16-2006, 01:37 PM	#2 (permalink)
Randy Chase Registered User Join Date: Apr 2002 Location: San Diego and where ever the roads lead Posts: 28,175 Images: 761	AC can help cool the car down. Check to make sure the connectors are plugged into the fan control box. It lives on top of the front passenger wheel liner. The connectors can easily come undone. __________________ * V E R I T A S * A E Q U I T A S * No Longer the ADMIN here, please do not PM me asking for help. Thanks! 2006 Noble M400. Getrag tranny, Quaiffe LSD, Hinged clams. Duratec dual turbo V6. Hoosier 315-18 tires. 2350 pounds. Over 500hp. Track weapon. 2009 Rossion Q1. Monaco Orange. Wing. Black leather/Alcantara with orange stitching. The street car. In build: 2009 Toniq R (300whp? 1100 pounds?). Chrome Orange. Lexus GX-470 tow vehicle.

03-29-2007, 12:00 PM	#4 (permalink)
ace10 -30- Join Date: Jun 2006 Posts: 4,449 Images: 35	first chance to experience higher temps this AM. mostly stop and go driving <5MPH for about 30 minutes. gauge kept creeping up to 207/208 then dropping. i must admit that the heat plumes coming from the front were a bit scary. should i be worried? air temp was 50 degrees +/- __________________ 2007 Exige S, Storm Ti. Sport, Track and TC.Plus: Multivex Mirrors, S111 Deltabrace, Sparco 6Pt harnesses (w/Ti Dave's Antisub belt mount), I/O Port video mount, Snorkel delete, Shims out, Rearview Mirror delete, 2Bular 7X18, Pagid RS42's, Saiku Michi catch can and, of course, blingy carpet buttons. 08 M-B ML320 cdi, 08 Toyota Tundra SR5 5.7, 06 M-B E320 cdi, 02 Lexus LX470, 97 Bobcat 751C The Red Pill Ignore Me *Be sure too save your IL before browsing away

03-29-2007, 12:02 PM	#5 (permalink)
Randy Chase Registered User Join Date: Apr 2002 Location: San Diego and where ever the roads lead Posts: 28,175 Images: 761	I don't think it is anything to worry about, but I am surprised that at 50 degrees it got that warm. Stop and go for an extended period can certainly make the temps climb. Did the fans come on? __________________ * V E R I T A S * A E Q U I T A S * No Longer the ADMIN here, please do not PM me asking for help. Thanks! 2006 Noble M400. Getrag tranny, Quaiffe LSD, Hinged clams. Duratec dual turbo V6. Hoosier 315-18 tires. 2350 pounds. Over 500hp. Track weapon. 2009 Rossion Q1. Monaco Orange. Wing. Black leather/Alcantara with orange stitching. The street car. In build: 2009 Toniq R (300whp? 1100 pounds?). Chrome Orange. Lexus GX-470 tow vehicle.

03-29-2007, 12:20 PM	#6 (permalink)
ace10 -30- Join Date: Jun 2006 Posts: 4,449 Images: 35	couldn't hear the fans, but i was in the middle lane surrounded by much larger vehicles. i'm assuming (hoping) that the plumes were the fans coming on. i've driven the car relatively hard in 30 degree warmer weather and not seen temps rise above 200. i'm going to keep my eye on the gauge. __________________ 2007 Exige S, Storm Ti. Sport, Track and TC.Plus: Multivex Mirrors, S111 Deltabrace, Sparco 6Pt harnesses (w/Ti Dave's Antisub belt mount), I/O Port video mount, Snorkel delete, Shims out, Rearview Mirror delete, 2Bular 7X18, Pagid RS42's, Saiku Michi catch can and, of course, blingy carpet buttons. 08 M-B ML320 cdi, 08 Toyota Tundra SR5 5.7, 06 M-B E320 cdi, 02 Lexus LX470, 97 Bobcat 751C The Red Pill Ignore Me *Be sure too save your IL before browsing away

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