Leaking Coolant - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 05-14-2012, 12:44 PM   #1
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
Leaking Coolant

As the title states, my fox just started leaking coolant today. I lost about 10% of total fluid in the rad so far only driving about 20 miles. Its not coming from any hoses or the water pump (the pump is reletively new). The leak seems to be coming from this hole in my firewall (that black cylinder is part of the A/C to give you an idea of where the hole is). Anyone know what its purpose is and the best way to go about fixing it? I was thinking about plugging it up somehow, not too sure the best way to go about that though.

Click image for larger version

Name:	image-2476470196.jpg
Views:	179
Size:	413.4 KB
ID:	50492
88gtCc is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-14-2012, 12:46 PM   #2
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
This is a pic of where the coolant ended up on the ground. Pretty sure I can rule out Rad, Hoses, and Pump eh?

Click image for larger version

Name:	image-3013859558.jpg
Views:	191
Size:	330.6 KB
ID:	50493
88gtCc is offline   Reply With Quote
Old 05-14-2012, 01:25 PM   #3
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
My phone connection is slow so at were I am at so I can't see the pics. But if its coming out of the firewall its probably your heater core. You can bypass it if you want but you may not get any heat. Just look were the 2 hoses go and hook those 2 locations together.
dreamstang is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-14-2012, 01:53 PM   #4
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
Update: Just felt up on my hoses and their is no fluid in either top nor bottom...even after running the car (fluid is 9/10th full). Possibly the new-ish water pump went bad?
88gtCc is offline   Reply With Quote
Old 05-14-2012, 01:57 PM   #5
Registered Member
Regular
 
jacob.a.gasparp's Avatar
 
Join Date: Dec 2011
Region: Nebraska
Posts: 125
I agree it sounds and looks like It's coming from your heater core. Only way to fix it is replace it and you should be able to either plug the two hoses that lead to it or possibly take one off and connect the one remaining connected to where the hose you took off was located on the engine effectively bypassing the heater core. I personally did the second with my 1980 power wagon when It's heater core went out I felt it was safer and more secure.
jacob.a.gasparp is offline   Reply With Quote
Old 05-14-2012, 02:42 PM   #6
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
I would be willing to try the bypass. Any idea where those two hoses are located on the firewall? I dont have my manual with me atm. Also, left it running at idle for a little bit. The pump didnt seem to move any fluid at all; at least it didnt before coolant started flowing out of that hole. :/
88gtCc is offline   Reply With Quote
Old 05-14-2012, 03:02 PM   #7
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
Did you check your thermostat also. The heater core hoses are above the passenger side header area. Make sure your pump is for the right year. After a certain year they changed the rotation.
dreamstang is offline   Reply With Quote
Old 05-14-2012, 03:07 PM   #8
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
The thermo and pump were changed at the same time (about 5k miles ago) by a shop. I honestly dont know which one/s they put in. Ill have to give them a call later. Thanks for the help so far guys
88gtCc is offline   Reply With Quote
Old 05-14-2012, 03:09 PM   #9
Road Trip!
 
Join Date: Apr 2011
Region: Indiana
Posts: 8,044
If it worked for 5k miles I'm sure its the right one.

---------- Post added at 03:09 PM ---------- Previous post was at 03:08 PM ----------

Also check the passenger side floorboard under the dash. Sometimes when the heater core goes out the carpet will get wet.
dreamstang is offline   Reply With Quote
Old 05-14-2012, 03:16 PM   #10
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
Just checked the carpet...its completely dry. No coolant leaks into the cabin as far as I can tell (even pulled the carpet back a bit to double check). Was contemplating driving it home, but now my trunk wont shut. Ugh...one of those days
88gtCc is offline   Reply With Quote
Old 05-14-2012, 03:57 PM   #11
Registered Member
Regular
 
90fox's Avatar
 
Join Date: Feb 2012
Region: Illinois
Posts: 302
Can't see pics, but maybe timing plate is leaking...I just got all my coolant leaks fixed 1 after another. I've replaced rad, wp, hoses, tstat. If your caepet is not wet, nor is mine possible timing plate spraying and ending up wherever. I think my mechanic just filed area down a little and put some kind of paint around it. No leaks now. Sounds like you've done those things as well, so maybe check timing plate before jumping to hc.
90fox is offline   Reply With Quote
Old 05-14-2012, 04:07 PM   #12
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
Hmm, never heard of that before but Ill look into it. Its definetely not spraying out at random tho, its all pouring out of a hole in my firewall directly above the passenger side header (to the bottom/right of the Black Cylinder...its some A/C component). It looks like it used to be plugged, but I cant tell for sure. I have no idea what that hole is for either.
88gtCc is offline   Reply With Quote
Old 05-14-2012, 04:31 PM   #13
Registered Member
Regular
Supporter
 
93slowstang's Avatar
 
Join Date: Jan 2011
Location: Walker
Region: Louisiana
Posts: 3,436
As some others said, it's your heater core. It shares the same housing as the a/c evaporator core. The hole is to evacuate the condensation and coolant in the event of a bad heater core. I would definitely bypass it until you can change it.

---------- Post added at 03:31 PM ---------- Previous post was at 03:28 PM ----------

Oh and it was never plugged up, that would cause it to overflow into your car.
__________________


93 GT with more junkyard mods than you can imagine.
90 GT bone stock down to the air filter, awaiting restoration.
Join Mustang Evolution today. Click here
93slowstang is offline   Reply With Quote
Old 05-14-2012, 04:38 PM   #14
Registered Member
Regular
 
88gtCc's Avatar
 
Join Date: Nov 2011
Region: Illinois
Posts: 59
Awesome! I thought that hole was for the A/C to dump consensation; didnt even think of it being shared with the heater core. So I only have to disconnect the two hoses going to the core and put them together somehow? Do I need a fitting of some sort in order to connect them together?



Click image for larger version

Name:	image-1371658704.jpg
Views:	357
Size:	514.9 KB
ID:	50517

Those two hoses right??
88gtCc is offline   Reply With Quote
Old 05-14-2012, 04:47 PM   #15
Registered Member
Regular
Supporter
 
93slowstang's Avatar
 
Join Date: Jan 2011
Location: Walker
Region: Louisiana
Posts: 3,436
Yep, those are the hoses. I got a fitting from work to bypass mine until I changed it. Can't remember size though.
__________________


93 GT with more junkyard mods than you can imagine.
90 GT bone stock down to the air filter, awaiting restoration.
Join Mustang Evolution today. Click here
93slowstang is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 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


» Like Us On Facebook



11:23 PM


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.