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

Engine Heater Hose Keeps Blowing

  • Thread starter Thread starter Clayton302
  • Start date Start date May 13, 2013

Clayton302

Member
May 21, 2012
79
2
8
Hurricane Utah
May 13, 2013
#1
  • May 13, 2013
  • #1
I may be posting a bit early but here is the issue: The inlet heater hose keeps blowing.

Possible cause:
1. I have a 7.5 inch lower pulley that spins everything faster than factory including the water pump. This could cause the water pump to push to much water.
2. A leaky intake manifold gasket. This could cause the air from the blower (16 psi) to go into the water passage and blow the hose.
3. Blown head gasket, same as #2 but with cylinder pressure. I hope this is not the case. The heads are studded but I feel this to be the most likely.

There is no sign of a blown head gasket (oil is clear, car doesn't over heat, and coolant looks clean) but it could only leak at full throttle when cylinder pressure is highest.

The blower is off right now and I plan to replace the old intake manifold gaskets in the hope that is the issue. I am also dropping the boost level 5 psi for the hot summer 105+ all summer long

Has anyone else had this issue?? Are there methods to test for a leaky head gasket like checking the coolant for carbon or the exhaust for coolant? I have not checked the compression yet and will do so in the next week and report back.
 
You must log in or register to reply here.

Similar threads

Fox Help
  • 93fox85
  • Mar 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
228
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 23, 2026
Noobz347
Fox won't crank over and fuel pump won't kick on.
  • djj62478
  • Jun 7, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
16
Views
420
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 11, 2026
General karthief
M
1997 Mustang GT Overheating Issue
  • Mustang1988!!
  • Sep 3, 2025
  • SN95 4.6L Mustang Tech
Replies
5
Views
301
SN95 4.6L Mustang Tech Sep 24, 2025
squeak93
M
2001 v6 heater return pipe leak question
  • mnky99
  • Nov 11, 2025
  • SN95 V6 Mustang Tech
Replies
1
Views
280
SN95 V6 Mustang Tech Nov 11, 2025
mnky99
M
O
Sooty/Oily Front Engine & Pulleys
  • ozenator
  • Jun 15, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
319
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 22, 2026
Blackhawkxx
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?