Another overheat issue - Mustang Evolution

Go Back   Mustang Evolution > 1979-Current Mustang GT || Tech and Talk > 2005-2010 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 06-27-2017, 10:56 AM   #1
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Another overheat issue

I was in stop and go traffic and I noticed the temp gauge is above normal so I started watching it. At the next light I lose ac and she starts to buck and idle rough. Needle is just about to the H mark. I pull over and pop the hood while it is still running and I see the fan is not running. I let is set for about an hour. Came back and started it and the fan is running. Drove home on the interstate with no issues. Ordered and installed a new fan. Overheats in traffic. Ordered and installed a new thermostat. Overheats in traffic. Today getting a new high speed fan relay. If that doesn't work what else do I have. Please help.


Sent from my iPhone using Mustang Evolution
zeus7625 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-27-2017, 01:38 PM   #2
Registered Member
Regular
 
Join Date: Jun 2016
Location: North Carolina
Region: Other
Posts: 1,832
Troubleshooting by throwing parts at it will only result in frustration and an empty wallet. Have you flushed the radiator? What year? What engine? How many miles? Any mods?
jkeaton is offline   Reply With Quote
Old 06-27-2017, 01:45 PM   #3
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Radiator was flushed when I changed out the thermostat. Forgot to mention. 2008 GT with Edelbrock supercharger.


Sent from my iPhone using Mustang Evolution

---------- Post added at 07:45 PM ---------- Previous post was at 07:44 PM ----------

90k miles


Sent from my iPhone using Mustang Evolution
zeus7625 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-27-2017, 03:55 PM   #4
Registered Member
Regular
 
jeno's Avatar
 
Join Date: May 2015
Location: san antonio texas
Posts: 1,069
Did you burp the radiator? Could have air in the radiator.


Sent from my iPhone using Mustang Evolution
jeno is offline   Reply With Quote
Old 06-27-2017, 06:26 PM   #5
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Yes. Overheated again after putting in a new high speed relay. I opened the hood and the fan was not running! That's what made me think it was the relay. Running out of options.


Sent from my iPhone using Mustang Evolution
zeus7625 is offline   Reply With Quote
Old 06-27-2017, 06:42 PM   #6
Registered Member
Regular
 
Revvv's Avatar
 
Join Date: Apr 2016
Location: Augusta
Region: Georgia
Posts: 3,261
Is the coolant circulating while the car is idling? The water pump may be bad.

Does the fan work with a direct 12v ?
Revvv is offline   Reply With Quote
Old 06-27-2017, 06:44 PM   #7
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
The fan runs at start up when I turn on the AC.
How do I verify if coolant is circulating?



Sent from my iPhone using Mustang Evolution
zeus7625 is offline   Reply With Quote
Old 06-27-2017, 06:50 PM   #8
Registered Member
Regular
 
Revvv's Avatar
 
Join Date: Apr 2016
Location: Augusta
Region: Georgia
Posts: 3,261
You should be able to remove the radiator cap and run the car until it reaches operating temp. You will see the coolant flowing as the thermostat opens?

Speaking of the thermostat, are you sure it was not installed upside down / backwards?
Revvv is offline   Reply With Quote
Old 06-27-2017, 07:06 PM   #9
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Thanks for the tip on coolant circulating. I'll try that tomorrow. Thermostat was installed correctly. The housing allows for only one way.


Sent from my iPhone using Mustang Evolution
zeus7625 is offline   Reply With Quote
Old 06-30-2017, 11:13 AM   #10
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Coolant is circulating. So I took another look at the fan behavior. I start up from sitting all night and turn on the AC. Fan starts right up. I let it idle to temperature. Then I cranked the AC to max to get it to over heat. After a few minutes the temp starts to rise. The rpms change as the AC shuts down. After a few more minutes the fan shuts down and the temp starts to rise quickly.

Brand new fan. Any ideas?


Sent from my iPhone using Mustang Evolution
zeus7625 is offline   Reply With Quote
Old 06-30-2017, 04:28 PM   #11
Registered Member
Regular
 
Revvv's Avatar
 
Join Date: Apr 2016
Location: Augusta
Region: Georgia
Posts: 3,261
The sensor / thermostat that triggers the fan may be bad.

All I can do at this point is guess.
Revvv is offline   Reply With Quote
Old 07-01-2017, 07:00 PM   #12
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Where is it?


Sent from my iPad using Mustang Evolution
zeus7625 is offline   Reply With Quote
Old 07-12-2017, 05:53 PM   #13
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Took it to the local mechanic for a computer diagnostic. Seems the new fan is faulty since the computer shows no faults or broken circuits. Fan is under warrantee and on its way back. New fan is on the way. More later


Sent from my iPad using Mustang Evolution
zeus7625 is offline   Reply With Quote
Old 07-12-2017, 06:14 PM   #14
Registered Member
Regular
 
Revvv's Avatar
 
Join Date: Apr 2016
Location: Augusta
Region: Georgia
Posts: 3,261
Quote:
Originally Posted by zeus7625 View Post
Took it to the local mechanic for a computer diagnostic. Seems the new fan is faulty since the computer shows no faults or broken circuits. Fan is under warrantee and on its way back. New fan is on the way. More later


Sent from my iPad using Mustang Evolution
Hopefully that is easily sorted.
Revvv is offline   Reply With Quote
Old 07-19-2017, 06:14 PM   #15
Registered User
Newbie
 
zeus7625's Avatar
 
Join Date: Jun 2017
Posts: 9
Problem persists 3 fans later! This time I installed the fan and did not turn on the AC to let the vehicle reach temperature naturally. Fan did not come on until nearing 12 o'clock. Held for good amount of time so I loaded the engine by starting up the AC. Held for a minute but soon started to rise and the fan shut off. That was it! Fan never started back up and the needle continued to rise. I don't own a tuner so my next stop is finding a local speed shop for help. BTW I connected my obd2 reader and it showed no codes.


Sent from my iPad using Mustang Evolution
zeus7625 is offline   Reply With Quote
Old 07-28-2017, 05:16 AM   #16
Registered Member
Regular
 
Wolfsbain76's Avatar
 
Join Date: Jul 2010
Region: New York
Posts: 271
Me too!!!

Quote:
Originally Posted by zeus7625 View Post
I was in stop and go traffic and I noticed the temp gauge is above normal so I started watching it. At the next light I lose ac and she starts to buck and idle rough. Needle is just about to the H mark. I pull over and pop the hood while it is still running and I see the fan is not running. I let is set for about an hour. Came back and started it and the fan is running. Drove home on the interstate with no issues. Ordered and installed a new fan. Overheats in traffic. Ordered and installed a new thermostat. Overheats in traffic. Today getting a new high speed fan relay. If that doesn't work what else do I have. Please help.


Sent from my iPhone using Mustang Evolution
I'm having the same issue!! Fan works fine, drive for a while but then stops working and overheat. Then the coolant starts to rise in the reservoir as if it has no where to go! Im about to change the coolant and thermostat as well as the temperature sensor. But I've read many sites about people having this issue and NO ONE has found out why and the problem still persists.
__________________
2007 Mustang GT
Wolfsbain76 is offline   Reply With Quote
Old 06-22-2018, 08:40 AM   #17
Registered Member
Regular
 
Wolfsbain76's Avatar
 
Join Date: Jul 2010
Region: New York
Posts: 271
Update.

Figured out my problem. I have an SCT Tunner, and I messed with the radiator fan temp settings, I returned the car to Stock, programmed what needed to be changed back except for the fan temps. Overheat issue gone.

---------- Post added at 10:40 AM ---------- Previous post was at 10:40 AM ----------

Update.

Figured out my problem. I have an SCT Tunner, and I messed with the radiator fan temp settings, I returned the car to Stock, programmed what needed to be changed back except for the fan temps. Overheat issue gone.
__________________
2007 Mustang GT
Wolfsbain76 is offline   Reply With Quote
Old 06-30-2018, 04:59 AM   #18
Registered Member
Regular
 
Wolfsbain76's Avatar
 
Join Date: Jul 2010
Region: New York
Posts: 271
Quote:
Originally Posted by zeus7625 View Post
Problem persists 3 fans later! This time I installed the fan and did not turn on the AC to let the vehicle reach temperature naturally. Fan did not come on until nearing 12 o'clock. Held for good amount of time so I loaded the engine by starting up the AC. Held for a minute but soon started to rise and the fan shut off. That was it! Fan never started back up and the needle continued to rise. I don't own a tuner so my next stop is finding a local speed shop for help. BTW I connected my obd2 reader and it showed no codes.


Sent from my iPad using Mustang Evolution
Damn it, I know I replied with the solution, but, apparently that didn't last long as the overheating is back and the the fan won't turn on!! Did you ever figure the problem out?
__________________
2007 Mustang GT
Wolfsbain76 is offline   Reply With Quote
Old 07-27-2019, 08:01 PM   #19
Registered Member
Regular
 
Wolfsbain76's Avatar
 
Join Date: Jul 2010
Region: New York
Posts: 271
Guys, I know it's a dead issue being beat here, but has anyone figured out the problem? It's going on two years and I can't figure the problem out. I'm seriously thinking about installing a separate switch to turn the fan on. Anybody ever do a manual turn on switch?
__________________
2007 Mustang GT
Wolfsbain76 is offline   Reply With Quote
Old 07-29-2019, 01:14 AM   #20
Registered Member
Regular
 
Join Date: Jul 2019
Location: Madrid - Spain - Europe
Region: Europe
Posts: 25
I had that same problem in my subaru b9 tribeca this week, I changed everything, hoses, radiator cleaning ,thermostat,coolant .....and kept going up. An the end, I looked the radiator cap and I saw that It had one of the ring cracks. I changed it for another and solved!!!!.
I was already thinking about changing the head gaskets
Pelayo is offline   Reply With Quote
Old 07-29-2019, 08:03 AM   #21
Registered Member
Regular
 
ddtmoto's Avatar
 
Join Date: Nov 2012
Region: Utah
Posts: 191
...sure sounds like a relay or temp sensor... swap all the matching relays around with matching ones in the relay box. The cost is zero. Start with the easy stuff. Has to an electrical issue..?
ddtmoto is offline   Reply With Quote
Old 07-30-2019, 04:35 PM   #22
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 8,145
Yes. Check all of the fuses, relays, wiring, connectors, associated with the cooling fan circuit.
The Body Control Module is what ultimately controls the on/off/speed functions of the fan.
straybullitt is offline   Reply With Quote
Old 07-31-2019, 09:18 AM   #23
Registered Member
Regular
 
Join Date: Jul 2019
Location: Madrid - Spain - Europe
Region: Europe
Posts: 25
Are you try to change the temperature sensor?: is this sensor who says to the fan start,...through the ECU
Pelayo is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-Current Mustang GT || Tech and Talk > 2005-2010 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Overheat fluke? Wolfsbain76 2005-2010 Mustang GT 8 06-04-2017 05:43 PM
MUSTANG OVERHEAT! KevinMichael 2005-2010 V6 Mustang 4 10-08-2014 07:35 PM
Overheat Vsixpower Pre-2005 V6 Mustang 13 06-26-2013 08:49 PM
Overheat Jimbomac22 Pre-2005 V6 Mustang 3 08-08-2012 01:47 AM
OVERHEAT!! NHStang03 1996-2004 Mustang GT 5 08-26-2008 12:20 PM

» Premium Vendor
» Like Us On Facebook



09:24 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.