• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Can't find Coolant leak

  • Thread starter Thread starter bbbngowc
  • Start date Start date Oct 29, 2007
B

bbbngowc

New Member
Feb 28, 2007
32
0
0
Oct 29, 2007
#1
  • Oct 29, 2007
  • #1
Changed my engine mounts and tranny mount. Took the car out for a test spin and when I came back there's coolant leaking from the back of the engine somewhere. I think when the engine was lifted to get to the mounts a hose or something came loose. I'm really not in the mood to lift the engine out to find this leak, is there another way to find / plug this leak without lifting the engine?
 

SuperStang83

Founding Member
Mar 21, 2001
1,693
0
49
Boyertown, Pa
Oct 29, 2007
#2
  • Oct 29, 2007
  • #2
Easiest way is to probably just run the car and look for it. Also just check where the coolant is and follow it up to its highest point.
 

rd

Founding Member
Jan 12, 2000
3,316
63
109
Ocean Springs MS
Oct 29, 2007
#3
  • Oct 29, 2007
  • #3
Look at all your heater hoses.

They loosen over time, and jacking the engine will stress the connection and help the leak.

I did the same Sat, and mine were loose from not being tightened for six months.
 
B

bbbngowc

New Member
Feb 28, 2007
32
0
0
Oct 30, 2007
#4
  • Oct 30, 2007
  • #4
Cool. I'll def give this a look see tomorrow.
 

Gearbanger 101

Straight Outta Locash
20+ Year Stangneter
Aug 10, 2002
9,457
1,377
234
Ontario, Canada
Oct 30, 2007
#5
  • Oct 30, 2007
  • #5
Yup....heater hoses or lower intake manifold would be my guess. Especially coming from the back of the engine.
 

black87ttop

Member
Oct 29, 2007
43
2
8
burlington,new jersey
Oct 30, 2007
#6
  • Oct 30, 2007
  • #6
use a pressure tester, that will build pressure in the cooling system which will help you find leaks.
 

Georgie

New Member
Jul 13, 2005
455
0
0
Montreal, Canada
Oct 31, 2007
#7
  • Oct 31, 2007
  • #7
^ +1

i used my aire compressor and put pressure in one of the hoses untill it starts leaking.. easiest way..oh and if u still have original hoses, remeber that one of them might be cracked...
 
P

PJB

New Member
Aug 22, 2006
131
0
0
Rotterdam, NY
Oct 31, 2007
#8
  • Oct 31, 2007
  • #8
black87ttop said:
use a pressure tester, that will build pressure in the cooling system which will help you find leaks.
Click to expand...

Definately the best way
 
You must log in or register to reply here.

Similar threads

P
Engine Mysterious coolant leak at back of engine
  • palerider94
  • Jan 18, 2026
  • Fox 5.0 Mustang Tech
Replies
1
Views
244
Fox 5.0 Mustang Tech Jan 19, 2026
AeroCoupe
A
Engine 302 oil leak when running
  • AlexM556
  • Sep 8, 2026
  • Classic Mustang Specific Tech
  • 2
Replies
29
Views
832
Classic Mustang Specific Tech Tuesday at 7:51 AM
AlexM556
A
O
Sooty/Oily Front Engine & Pulleys
  • ozenator
  • Jun 15, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
419
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 22, 2026
Blackhawkxx
D
Engine Coolant and Radio Issues
  • Don7Up
  • Sep 14, 2025
  • Fox 5.0 Mustang Tech
Replies
17
Views
760
Fox 5.0 Mustang Tech Oct 4, 2025
Don7Up
D
J
Bad Vibration
  • jefffletch47
  • Feb 12, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
7
Views
406
1996 - 2004 SN95 Mustang -General/Talk- Jun 2, 2026
dgrinnan
D
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?