2011 GT radiator fan weirdness - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 2011-2014 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 05-12-2016, 12:45 PM   #1
Gor
Registered User
Newbie
 
Gor's Avatar
 
Join Date: Nov 2012
Region: Oklahoma
Posts: 5
Send a message via Skype™ to Gor
2011 GT radiator fan weirdness

Hi all,

My 2011 GT has started doing this thing where when the Air Conditioning is on, the radiator cooling fan switches on for maybe 2-5 seconds, then switches off for a short time, maybe 10-20 seconds, then repeats.

The thing that made me notice this, is whenever the fan kicks on, it bogs the engine down to the point that the cars electrical system gets pulled down to maybe 10 or 11 volts, which is enough to automatically wind the Windows down if the bog-down happens while you're in the process of winding one up. I guess this is a safety feature in case you get something jammed in the window, which would also pull the voltage down.

I thought it might be my battery not being able to hold up the voltage, so I replaced it. It didn't change a thing.

Anyone else seen this issue?
Any ideas on how to fix it?

EDIT: I just tested it with the AC off, and the fan cycle is much more normal, but it still bogs down the engine when it kicks in.

I've looked at the fan to see if it shows any signs of fouling or if it appears to stop quickly after it switches off, possibly indicating a problem with its bearing, but it's free and looks great.


Sent from my iPhone using Tapatalk
Gor is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-12-2016, 01:16 PM   #2
Staff

Regular
Staff
 
Strange Mud's Avatar
 
Join Date: Aug 2013
Location: Small Town
Region: Connecticut
Posts: 5,022
internet guess: fan motor is on it's way out (or bad connectors)
__________________
2012 V6 with suspension, shifting, stopping and sound mods.
Strange Mud is offline   Reply With Quote
Old 05-12-2016, 05:31 PM   #3
Gor
Registered User
Newbie
 
Gor's Avatar
 
Join Date: Nov 2012
Region: Oklahoma
Posts: 5
Send a message via Skype™ to Gor
Yeah I guess that's a possibility! Hopefully it's not a pain to change. Looks like I can replace the fan for around $150.

Some one suggested that the throttle body needs cleaning, but I didn't buy that.
It probably does though. And new plugs. I'm a little over 60,000 miles.


Sent from my iPhone using Tapatalk
Gor is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-12-2016, 06:26 PM   #4
Registered Member
Regular
 
christianh's Avatar
 
Join Date: Mar 2015
Location: Cape Coral
Region: Florida
Posts: 89
Holy crap I was coming on the forum tonight to ask this question. I'm having the same exact issue now that it's getting hot out again.

I am running a boost a pump and thought maybe the electrical was getting funky with that...are you running one too by chance? I don't remember this ever happening before I boosted my car, so not sure if it's related. It's actually bogged down so bad for me a few times, it's actually shut my car off (sitting in drive while stopped).

At least for me, it doesn't seem to matter if the A/C is on or not.
__________________
Paxton Charged Unicorn
christianh is offline   Reply With Quote
Old 05-12-2016, 06:35 PM   #5
Gor
Registered User
Newbie
 
Gor's Avatar
 
Join Date: Nov 2012
Region: Oklahoma
Posts: 5
Send a message via Skype™ to Gor
Wow! Well I'm glad I'm not alone!
I'm not running anything aftermarket except a Bama tune. I suspected that at first, so I did a number of idle relearns, tried different tunes, and also returned to stock. None of that made any difference.

I guess we have two issues (well, I do).

1) The idle bog-down issue when the cooling fan kicks in.

2) The cooling fan kicking in regularly, and for short periods when AC is on. Might not even be an issue, just brought to my attention because of the bogging down.

I haven't stalled yet because of it, but I wouldn't be surprised if it happened. It sounds like it's getting pretty close!


Sent from my iPhone using Tapatalk
Gor is offline   Reply With Quote
Old 05-12-2016, 06:48 PM   #6
Registered Member
Regular
 
dave73's Avatar
 
Join Date: Nov 2014
Location: Mechanicsville
Region: Maryland
Posts: 1,058
You could amp the fan motor see if it's over amping.


Sent from my iPhone using Mustang Evolution
dave73 is offline   Reply With Quote
Old 05-12-2016, 06:54 PM   #7
Gor
Registered User
Newbie
 
Gor's Avatar
 
Join Date: Nov 2012
Region: Oklahoma
Posts: 5
Send a message via Skype™ to Gor
Quote:
Originally Posted by dave73 View Post
You could amp the fan motor see if it's over amping.


Sent from my iPhone using Mustang Evolution


Good idea. Although I don't have a good enough meter for that.
I'm surprised it's not blowing the fuse the way it's obviously pulling a load of current...
Gor is offline   Reply With Quote
Old 05-12-2016, 06:59 PM   #8
Registered Member
Regular
 
dave73's Avatar
 
Join Date: Nov 2014
Location: Mechanicsville
Region: Maryland
Posts: 1,058
Well it will eventually blow the fuse if it is the fan going bad. Although I once saw a fan go bad and the wires actually caught fire and the fuse didn't blow in a Subaru.


Sent from my iPhone using Mustang Evolution
dave73 is offline   Reply With Quote
Old 05-12-2016, 07:01 PM   #9
Gor
Registered User
Newbie
 
Gor's Avatar
 
Join Date: Nov 2012
Region: Oklahoma
Posts: 5
Send a message via Skype™ to Gor
Quote:
Originally Posted by dave73 View Post
Well it will eventually blow the fuse if it is the fan going bad. Although I once saw a fan go bad and the wires actually caught fire and the fuse didn't blow in a Subaru.


Sent from my iPhone using Mustang Evolution


What causes the fan motor to go bad?
I considered the fact that it might be a bearing or something seizing up on the fan, so I pushed it around manually, and it's free and there's no resistance to the rotation. Weird.

Thanks for the advice, man!
Gor is offline   Reply With Quote
Old 05-12-2016, 07:07 PM   #10
Registered Member
Regular
 
dave73's Avatar
 
Join Date: Nov 2014
Location: Mechanicsville
Region: Maryland
Posts: 1,058
2011 GT radiator fan weirdness

First of all we don't that's the problem yet. But fan motors are Mass produced cheap motors sometimes you get a bad one or something can cause it.


Sent from my iPhone using Mustang Evolution
dave73 is offline   Reply With Quote
Old 05-12-2016, 07:29 PM   #11
Senior Member
Supporter
 
Spartanator's Avatar
 
Join Date: Jul 2015
Location: League City
Region: Texas
Posts: 466
My base 11 GT does the same damn thing. I looked into it a while back and came up the same answer. That was a year ago............ Does it if my ac is off or not.

Pretty much stock besides a catch can. When it does I am replacing the radiator with a Boss model along with fan(s).
__________________
MT-82 hate.
Spartanator is offline   Reply With Quote
Old 05-13-2016, 05:38 AM   #12
Staff

Regular
Staff
 
Strange Mud's Avatar
 
Join Date: Aug 2013
Location: Small Town
Region: Connecticut
Posts: 5,022
bogging down when the ac compressor kicks in is "normal" fuses for motors are normally designed to allow brief periods of over current as motors take a good bit of power to get started compared to what they draw when running

also when testing with ac on/off make sure air flow is NOT to windshield as that will automatically cycle ac to aid in defrosting windshield
__________________
2012 V6 with suspension, shifting, stopping and sound mods.
Strange Mud is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 2011-2014 Mustang GT

Tags
2011 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
Weirdness 351stroker 1979-1995 Mustang GT 15 08-25-2013 09:27 AM
Electric fan on a 5.0 or stock fan? Haav 1979-1995 Mustang GT 8 07-10-2012 08:34 PM
Firefox Users - Weirdness for you? PureVenom ME Site Help & Announcements 11 07-20-2007 06:38 AM
lots of weirdness IN THE NEWS RGR The Bar 5 08-02-2006 10:59 PM

» Like Us On Facebook



03:45 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

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