• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Leaking Anti-freeze and can't fix

  • Thread starter Thread starter Winter
  • Start date Start date Sep 2, 2004
W

Winter

New Member
Sep 2, 2004
1
0
0
Sep 2, 2004
#1
  • Sep 2, 2004
  • #1
I am trying to fix a leak in on my 4.6 in my 96' mustang. I am leaking coolant around my thermostat. I have replaced the thermostat yet it's still leaking. I have tried putting the o-ring sitting on top of the thermostat, on the snout of the hose which presses against the thermostat, have put the old o-ring below and the new ring on top of the thermostat but it still leaks.

Anyone know what I could be doing wrong, or have an idea how to get it to stop leaking? Could my intake have a hairline crack? Any ideas where I could find a new one on the net?

Any advice you guys have would be great.
 

70stangcoupe

Founding Member
Nov 12, 2001
2,895
0
0
Winston-Salem, NC
Sep 2, 2004
#2
  • Sep 2, 2004
  • #2
Search for cracked intake, and welcome to the crowd. My suggestion: PI Intake swap!
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
16
69
santa barbara, CA
Sep 2, 2004
#3
  • Sep 2, 2004
  • #3
yup, your intake is cracked. you need to get a new one, you cant fix the current one. your options are to put the same part number intake on, or put on a PI intake, 99+ and PI heads as well. but make sure that the new intake has an aluminum crossover. you could also use the SVO intake ot a bullit intake.
 
You must log in or register to reply here.

Similar threads

S
Oil cooler delete 4v 4.6 1999 cobra mustang
  • sami12
  • Feb 24, 2026
  • SN95 4.6L Mustang Tech
Replies
5
Views
325
SN95 4.6L Mustang Tech Feb 25, 2026
GOvert
G
J
Engine Coolant leak from oil filter
  • jr273
  • Mar 26, 2026
  • SN95 4.6L Mustang Tech
Replies
9
Views
264
SN95 4.6L Mustang Tech Mar 31, 2026
squeak93
J
2001 coolant issue
  • jr273
  • Jan 24, 2026
  • The Welcome Wagon
Replies
1
Views
152
The Welcome Wagon Jan 24, 2026
Noobz347
E
Chasing Vacuum leak 99 GT
  • EBNS_2005
  • May 2, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
161
1996 - 2004 SN95 Mustang -General/Talk- May 3, 2026
X-cam34
X
P
Engine Mysterious coolant leak at back of engine
  • palerider94
  • Jan 18, 2026
  • Fox 5.0 Mustang Tech
Replies
1
Views
189
Fox 5.0 Mustang Tech Jan 19, 2026
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L 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?