Notices
GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Cooling fan

Thread Tools
 
Search this Thread
 
Old Jul 13, 2007 | 11:43 AM
  #1  
vividvideo's Avatar
vividvideo
Thread Starter
Driver School Candidate
 
Joined: Jul 2007
Posts: 6
Likes: 0
From: CA
Default Cooling fan

This is my first time on this forum. I've seen all sorts of advice and tips that are very helpful. I was wondering if anyone can help me. I drive a 2000 GS300. About a few months ago, I noticed that the engine cooling fan as been on all the time. Even when I click the ignition key (when the engine is off) to close the windows, the fan comes on. It's always on, even in the morning when the engine is cool. I'm concerned why it's doing that. Anyone have any ideas??? How do i fix this? I've asked a mechanic at the local Lexus dealer and he doesnt know....claims he's never heard nor seen that problem. Thanks for you time.
Reply
Old Jul 13, 2007 | 11:55 AM
  #2  
TRD911's Avatar
TRD911
Lead Lap
15 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Apr 2007
Posts: 522
Likes: 7
From: sc
Default

Welcome to CL. Sounds like a relay is shorted closed. Have you tried to pull one of the fan relays to see if that will stop the fan from running? I believe the relays are on the drivers side???? But, check boxes 1, 3 and 4.

The next step is to check what ever temperature switch controls that fan. You said fan I have a GS400 with two fans does the 300 only have one fan? If one fan is on all the time then I would really suspect a relay. If both are on I would be looking for a temperature switch. I do not know where it is on the 300. The 400 is near the thermostat.

B
Attached Thumbnails Cooling fan-m01a0747.jpg  
Reply
Old Jul 13, 2007 | 11:57 AM
  #3  
TRD911's Avatar
TRD911
Lead Lap
15 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Apr 2007
Posts: 522
Likes: 7
From: sc
Default

Originally Posted by vividvideo
This is my first time on this forum. I've seen all sorts of advice and tips that are very helpful. I was wondering if anyone can help me. I drive a 2000 GS300. About a few months ago, I noticed that the engine cooling fan as been on all the time. Even when I click the ignition key (when the engine is off) to close the windows, the fan comes on. It's always on, even in the morning when the engine is cool. I'm concerned why it's doing that. Anyone have any ideas??? How do i fix this? I've asked a mechanic at the local Lexus dealer and he doesnt know....claims he's never heard nor seen that problem. Thanks for you time.
Local lexus dealer mechanic.. better run far away from him. Must be an impostor.

B

Last edited by TRD911; Jul 13, 2007 at 12:02 PM.
Reply
Old Jul 13, 2007 | 08:49 PM
  #4  
dusouth's Avatar
dusouth
Pole Position
15 Year Member
Photogenic
 
Joined: Sep 2006
Posts: 388
Likes: 0
From: fl
Default

mine does the same thing and its been doing it for months now. i was searching for the problem but haven't had any luck. dealer told me the same thing as you.
Reply
Old Jul 16, 2007 | 03:41 AM
  #5  
slammed_gs's Avatar
slammed_gs
Lead Lap
 
Joined: Apr 2007
Posts: 499
Likes: 0
From: new jersey
Default

my car is doing the same damn thing i been driving like this for about 4 months .I dont think its doing any harm,...but it sure does suck, im going to get it checked out soon.




Reply
Old Jul 16, 2007 | 12:00 PM
  #6  
TRD911's Avatar
TRD911
Lead Lap
15 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Apr 2007
Posts: 522
Likes: 7
From: sc
Default

pull your fan relays out and check them or replace them. There has to be something wrong there.
Reply
Old Jul 17, 2007 | 10:42 AM
  #7  
vividvideo's Avatar
vividvideo
Thread Starter
Driver School Candidate
 
Joined: Jul 2007
Posts: 6
Likes: 0
From: CA
Default

bmpiazzola,

Sorry to just get back on now, but thanks for that advice!! Thanks for your time. I'll check it out today. It's nice to know that i'm not the only one. Hope you other guys solve the problem.

Peace

PS,
if it is the relay, how much would that cost? is that something I can purchase and change myself?? Good lookin out!
Reply
Old Jul 17, 2007 | 11:02 AM
  #8  
TRD911's Avatar
TRD911
Lead Lap
15 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Apr 2007
Posts: 522
Likes: 7
From: sc
Default

Not sure if you can do it yourself. It is only a plug in relay that goes into a socket. If you can pull it out then you can change it. You should be able to buy the relay at http://www.trademotion.com/partlocat...83&catalogid=0 if you have the part number. I am not affliated with this site at all. I like to use them cause they have good prices.

Let me know what it turns out to be.
B
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-1

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-2

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-3

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-4

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-5

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-6

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
story-7

Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

 Michael S. Palmer
story-8

Top 10 Lexus & Toyota Models of the 1990s RANKED!

 Joe Kucinski
story-9

10 Great Toyotas That Could Have Been Lexus Models

 Joe Kucinski
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dusouth
GS - 2nd Gen (1998-2005)
31
Jan 2, 2018 07:41 PM
Jkkimjkkim
IS - 2nd Gen (2006-2013)
3
Nov 8, 2017 06:34 PM
doitlexi
GS - 3rd Gen (2006-2011)
1
May 6, 2015 03:15 AM
BBriBro
SC - 1st Gen (1992-2000)
1
Jan 7, 2009 07:15 PM
RamshakleZ
IS - 2nd Gen (2006-2013)
23
May 15, 2007 02:25 PM




All times are GMT -7. The time now is 06:43 PM.

story-0
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-1
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-2
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-3
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-4
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-5
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-6
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE
story-7
Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

Slideshow: reviewing the 2026 Lexus TX 550h+ Luxury plug-in hybrid crossover SUV!

By Michael S. Palmer | 2026-03-05 19:04:47


VIEW MORE
story-8
Top 10 Lexus & Toyota Models of the 1990s RANKED!

Slideshow: Top 10 Lexus and Toyota model of the 1990s ranked.

By Joe Kucinski | 2026-03-04 12:35:11


VIEW MORE
story-9
10 Great Toyotas That Could Have Been Lexus Models

Slideshow: 10 Toyotas that could have been Lexus models.

By Joe Kucinski | 2026-02-19 11:44:33


VIEW MORE