Go Back   MustangForums.com > Ford Mustang Tech > 5.0L (1979-1995) Mustang
Sign in using an external account
Register Forgot Password?
Search


5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Sponsored by Weld Racing


Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 04-23-2011, 09:19 PM   #1
08svt
 
Join Date: Mar 2010
Vehicle: 1992 ford mustang lx 5.0
Location: nj
Posts: 14
Default Coolant leak---HELP!!

I have a '92 LX vert 5.0. I have a coolant leak that is down the back left side of the block. I so far have done head gaskets/intake gaskets. It is not a bad leak. But enough to notice and smell. Anyone have any ideas of what else it can be. I am at a loss at this point to get it to go away
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
08svt is offline   Reply With Quote
Old 04-23-2011, 10:55 PM   #2
nightmare90gt
2nd Gear Member
 
Join Date: Sep 2010
Vehicle: 1990 mustang gt
Location: florida
Posts: 236
Default

heater lines
__________________
1990 mustang gt hatchback
mods
hurst shifter
trick flow twist wedge heads
edlebrock intake
70mm throttlebody
b303 cam about to be trickflow stage 2 cam
3.73 gears
bbk cai
mac longtubes
comp cams 1.6 rockers
mmlca
nightmare90gt is offline   Reply With Quote
Old 04-24-2011, 08:11 AM   #3
08svt
 
Join Date: Mar 2010
Vehicle: 1992 ford mustang lx 5.0
Location: nj
Posts: 14
Default

Which ones?
08svt is offline   Reply With Quote
Old 04-24-2011, 10:35 AM   #4
nightmare90gt
2nd Gear Member
 
Join Date: Sep 2010
Vehicle: 1990 mustang gt
Location: florida
Posts: 236
Default

the ones located on the back of the intake manifold. follow all you hoses
__________________
1990 mustang gt hatchback
mods
hurst shifter
trick flow twist wedge heads
edlebrock intake
70mm throttlebody
b303 cam about to be trickflow stage 2 cam
3.73 gears
bbk cai
mac longtubes
comp cams 1.6 rockers
mmlca
nightmare90gt is offline   Reply With Quote
Old 04-24-2011, 11:51 AM   #5
jlc41
2nd Gear Member
 
Join Date: Jan 2011
Vehicle: 2010 ford taraus
Location: Mississippi
Posts: 333
Default

Am not sure but you may have a freeze plug in that area.
jlc41 is offline   Reply With Quote
Old 04-24-2011, 02:36 PM   #6
rtintwo
2nd Gear Member
 
Join Date: Aug 2009
Vehicle: 1970 Mach 1
Location: Nebraska
Posts: 475
Default

Heater hose, gasket or crack.

Take a mirror and a flashlight and give everything a good look till you trace it back to the exit point.
rtintwo is offline   Reply With Quote
Old 04-24-2011, 09:11 PM   #7
Bubba 95SN
4th Gear Member
 
Join Date: Apr 2009
Vehicle: 1995 Ford Mustang GT
Location: N.C.
Posts: 1,891
Default

Freeze plug is in rear of head. Get pressure tester, pump to 16lbs while cold, have a look see.
Bubba 95SN is offline   Reply With Quote
Old 04-25-2011, 08:46 PM   #8
08svt
 
Join Date: Mar 2010
Vehicle: 1992 ford mustang lx 5.0
Location: nj
Posts: 14
Default

I have already replaced the head gaskets, and when they were done I had the heads sent and and tested.
Leak only happens when engine is hot, once it cools down nothing shows up on pressure test. I added some dye today hoping that helps
08svt is offline   Reply With Quote
Old 04-26-2011, 08:59 AM   #9
jlc41
2nd Gear Member
 
Join Date: Jan 2011
Vehicle: 2010 ford taraus
Location: Mississippi
Posts: 333
Default leak

Quote:
Originally Posted by 08svt View Post
I have already replaced the head gaskets, and when they were done I had the heads sent and and tested.
Leak only happens when engine is hot, once it cools down nothing shows up on pressure test. I added some dye today hoping that helps
Not to sound disrespectful, but you did follow the torque sequence and torque on the head bolts????. I say this because in the late 70's when Olds come out with the diesel they had head bolt problems. Turned out to be rear head bolt holes weren't tapped out deep enough, go figure.
jlc41 is offline   Reply With Quote
Old 04-26-2011, 11:18 AM   #10
DGSipes
 
Join Date: Nov 2010
Vehicle: 1988 Ford Mustang GT Conv
Location: Virginia
Posts: 19
Default

I had the same issue...turned out to be the heater core hoses (there are two of them...send and return)...my hose clamps were cranked down too hard. You would only see the leak if the engine was hot and at the same time giving it some gas...use your hand and manually rev the engine using the throttle body and shine a flash light back to those hoses to check and see if they are leaking....make sure then engine is at operating temperature.
DGSipes is offline   Reply With Quote
Old 04-26-2011, 11:18 AM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Tags
1994, 1995, 1999, 50, antifreeze, big, block, cobra, coolant, f150, ford, gt, leak, leaking, left, motor, mustang, rear, side, visible

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 Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 06:19 AM.

© Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup