Camry engine overheat, radiator fan not work - Toyota Nation Forum : Toyota Car and Truck Forums
Camry & Solara Lounge Discussion area for every generation of Toyota's family car, the Toyota Camry. Lexus ES250/300 owners welcome! Topics of discussion range from fuel economy, safety, modifications, performance and more.

 
LinkBack Thread Tools Display Modes
#1 Old 12-09-2009, 01:28 AM
New TN User
 
Join Date: Dec 2009
Location: Australia
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Camry engine overheat, radiator fan not work

My Camry 2001 4 cylinder get hot very soon after start. It get to half of the temperature clock after 2-3 minutes. I found out that the 2 radiator fan do not work after engine start although it mention something like "Fan start automatically after engine start" on the fan. I have tried to swap the radiator fan relay to another Camry that has fan working ok but nothing change. I don't know about the fan relay No. 2 and No. 3. However, the fans do work when I turn AC on.
I have consult a mechanic and he said "if the temperature does not go futher, its fine". However, the other Camry does not get hot that quick and that hot. Any ideas on what I should do?
Thanks a lot

Last edited by dk1975; 12-09-2009 at 01:31 AM.
dk1975 is offline  
Sponsored Links
Advertisement
 
#2 Old 12-09-2009, 03:05 PM
Official TN Member
 
Join Date: Aug 2009
Location: South Michigan
Posts: 301
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 3 Times in 3 Posts
iTrader Score: 0 reviews
The fan only runs when the coolant gets hotter than halfway up the temp gauge. halfway up is normal, especially normal in 3 minutes, my car is that hot in 3 minutes and its below 0*C outside.
Kenny_McCormic is offline  
#3 Old 12-09-2009, 06:39 PM
New TN User
 
Join Date: Dec 2009
Location: Australia
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
The radiator fans will not run even at more than half way the temp gauge, even after I travel a couple of hundred kms non-stop. I can feel that this car's engine is much hotter than the other Camry.
dk1975 is offline  
#4 Old 12-10-2009, 02:06 PM
2004 Camry LE
 
somick's Avatar
 
Join Date: Dec 2005
Location: Oceanside, CA
Posts: 385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Thanks: 16
Thanked 19 Times in 18 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by dk1975 View Post
The radiator fans will not run even at more than half way the temp gauge, even after I travel a couple of hundred kms non-stop. I can feel that this car's engine is much hotter than the other Camry.
Your feelings do not really count much.
Download your repair manual from www.camrystuff.com.
Verify the correct temperature for your engine and then borrow/buy a thermometer. Check the temperature of your engine. That will give you the real picture.

Good luck,

Sam

2004 Toyota Camry LE
1999 Honda Accord LX
1992 Subaru Loyale
2010 Subaru Forester

Last edited by somick; 12-10-2009 at 02:07 PM.
somick is offline  
#5 Old 12-10-2009, 03:24 PM
Official TN Member
 
Join Date: Aug 2009
Location: South Michigan
Posts: 301
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 3 Times in 3 Posts
iTrader Score: 0 reviews
The engine should run at 180-190* Fahrenheit. Maybe you have a bad thermostat in your cooler camry?
Kenny_McCormic is offline  
#6 Old 12-10-2009, 06:20 PM
New TN User
 
Join Date: Dec 2009
Location: Australia
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
(Thread Starter)
Thanks a lot, you guys are excellent. I have checked the service spec for 5S-FE engine and see this:
Valve opening temperature: 80 – 84C (176 – 183F)
Valve lift at 95C (203F) 8 mm (0.31 in.) or more
I googled for how thermostat work and found this http://auto.howstuffworks.com/question248.htm
My understanding is that the thermostat valve will close until engine reach 176-183 then it will open to let coolant run to radiator to cool down, at this point, the radiator fan will also start to work, is it correct?
Can someone explain what does it mean "Valve lift at 203F"?
Must I use a laser thermometer to measure engine temp, how? Can I use a normal electronic thermometer?
If I'm to replaced the thermostat, should I use a normal thermostat or a bypass thermostat for the 5S-FE engine. This is not mentioned in the manual.
dk1975 is offline  
#7 Old 12-11-2009, 11:55 AM
2004 Camry LE
 
somick's Avatar
 
Join Date: Dec 2005
Location: Oceanside, CA
Posts: 385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Thanks: 16
Thanked 19 Times in 18 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by dk1975 View Post
Thanks a lot, you guys are excellent. I have checked the service spec for 5S-FE engine and see this:
Valve opening temperature: 80 – 84C (176 – 183F)
Valve lift at 95C (203F) 8 mm (0.31 in.) or more
I googled for how thermostat work and found this http://auto.howstuffworks.com/question248.htm
My understanding is that the thermostat valve will close until engine reach 176-183 then it will open to let coolant run to radiator to cool down, at this point, the radiator fan will also start to work, is it correct?
Can someone explain what does it mean "Valve lift at 203F"?
Valve lift is most likely when the thermostat opens
Quote:
Originally Posted by dk1975 View Post
Must I use a laser thermometer to measure engine temp, how?
Yes
Quote:
Originally Posted by dk1975 View Post
If I'm to replaced the thermostat, should I use a normal thermostat or a bypass thermostat for the 5S-FE engine. This is not mentioned in the manual.
Never remove thermostat!!! It is there for a reason. Check "howstuffworks" fro more info.

As far as I remember my Accord's working temperature is around 200 to 300 degrees. I do not think that Toyota is much different.

Sam

2004 Toyota Camry LE
1999 Honda Accord LX
1992 Subaru Loyale
2010 Subaru Forester

Last edited by somick; 12-11-2009 at 11:57 AM.
somick is offline  
#8 Old 12-11-2009, 02:57 PM
Official TN Member
 
Join Date: Aug 2009
Location: South Michigan
Posts: 301
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 3 Times in 3 Posts
iTrader Score: 0 reviews
The fan will only run if the radiator and air flow from driving is not enough.
Kenny_McCormic is offline  
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Passenger and Sports Car Forums > Camry and Solara Forum > Camry & Solara Lounge

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Toyota Nation Forum : Toyota Car and Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome