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

Loosing coolant

  • Thread starter Thread starter cdog301
  • Start date Start date Jul 27, 2006
  • 1
  • 2
Next
1 of 2 Next Last

cdog301

Founding Member
Aug 30, 2000
236
1
18
richmond ,ca
Jul 27, 2006
#1
  • Jul 27, 2006
  • #1
I am loosing coolant but no visible leaks! All new hoses water pump and radiator! No leaks on the groung nothing in the car (heater) Motor has about 12k miles on it new heads block etc! Please someone help me !
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Jul 27, 2006
#2
  • Jul 27, 2006
  • #2
cdog301 said:
I am loosing coolant but no visible leaks! All new hoses water pump and radiator! No leaks on the groung nothing in the car (heater) Motor has about 12k miles on it new heads block etc! Please someone help me !
Click to expand...


get a pressure tester and pressurize the cooling system and look again then , what head gasket did you use ? did you use studs or bolts for the heads ?
 
D

DeVus1

Founding Member
Mar 29, 2002
400
2
28
P-Town, Va.
Jul 27, 2006
#3
  • Jul 27, 2006
  • #3
When was the last time you drained and refilled the system?
 

cdog301

Founding Member
Aug 30, 2000
236
1
18
richmond ,ca
Jul 27, 2006
#4
  • Jul 27, 2006
  • #4
coolant

I used ARP studs and AFR 165 heads felpro 10-11 head gasket!
 
B

Boss 351

Here sthhhhhhhheeeve take a picthh of my man flowe
Jul 13, 2003
2,433
23
48
Canada
Jul 27, 2006
#5
  • Jul 27, 2006
  • #5
You used thread sealer on the bottom (or outside) studs?
 

monte87

Founding Member
Feb 26, 2001
876
18
49
new york
Jul 27, 2006
#6
  • Jul 27, 2006
  • #6
cdog301 said:
I used ARP studs and AFR 165 heads felpro 10-11 head gasket!
Click to expand...

personally-i would use FORD RACING heavy duty graphite H/G's, they are cheaper than Fel Pro and better than them as well. AFR recommends them, I used them before, when i replaced them last, just went with the graphites, never had a prob.

Ant
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Jul 27, 2006
#7
  • Jul 27, 2006
  • #7
cdog301 said:
I used ARP studs and AFR 165 heads felpro 10-11 head gasket!
Click to expand...

if you used thread sealant on the lower studs , pull them one at a time and put some red high temp silicone on them and retorque but only do one at a time and you should only have to do the lowers , if it still leaks , pull the heads and silicone the coolant passage ways on the lower side of the head and on the threads of the lower studs where they go into the block
 

1993SSP

Founding Member
Sep 5, 2001
1,194
0
37
Ky
Jul 27, 2006
#8
  • Jul 27, 2006
  • #8
I have the same problem, cannot see any leaks, when the motor is warm there is FAINT smell of coolant, it is a tad aggravating.. would like to solve my problem as well
 
M

Madrid91

New Member
Jul 28, 2006
14
0
0
Jul 28, 2006
#9
  • Jul 28, 2006
  • #9
Ditto on the fait smell, no leaks and periodic "LOW COOLANT" light.

92 GT 141K
 
S

SamSnyder

New Member
Mar 30, 2005
196
0
0
Jul 29, 2006
#10
  • Jul 29, 2006
  • #10
Losing a little, or a lot? Every month or so I would see that my plastic coolant overflow container would be bone dry, but no visible sign of leakage. Finally tracked it down to a bad EGR spacer gasket, which let coolant get sucked into the intake. New gaskets and lapping the surface of the spacer flat solved that one.
 

cdog301

Founding Member
Aug 30, 2000
236
1
18
richmond ,ca
Sep 3, 2006
#11
  • Sep 3, 2006
  • #11
leak

Ok Intake (lower) leaking into #5 and #1 cylinder both have bad compression 15psi or less Looks like I'm getting a 331 or 347 boys
and low compression pistons so I can run that blower I always wanted
 

Roland69

Sergeant Tangnet
Sep 17, 2005
2,867
2
58
Port Elgin, Ontario
Sep 3, 2006
#12
  • Sep 3, 2006
  • #12
weep hole for the H/C
 

Roland69

Sergeant Tangnet
Sep 17, 2005
2,867
2
58
Port Elgin, Ontario
Sep 4, 2006
#13
  • Sep 4, 2006
  • #13
right here is where I would check after engine gets up to temps..(this is the weep hole)
[/IMG]
 

SMOKEDYA

20+ Year Stangneter
Jul 13, 2003
3,637
8
79
Tucson AZ
Sep 4, 2006
#14
  • Sep 4, 2006
  • #14
1993SSP said:
I have the same problem, cannot see any leaks, when the motor is warm there is FAINT smell of coolant, it is a tad aggravating.. would like to solve my problem as well
Click to expand...
Got any pics of your ssp? I have a 93 ssp as well from texas! peace





john
 
B

BYRDPE

Founding Member
Nov 4, 1998
1,556
0
37
Memphis,Tn.
Sep 4, 2006
#15
  • Sep 4, 2006
  • #15
I had the same low coolant issue.
Got under the car a few days ago and sure enough I could see where coolant had been leaking from the bottom of the wp.
It never made it to the ground so I suspect it was leaking while I was driving.
I replaced it with a new unit from NAPA.
 
P

PJB

New Member
Aug 22, 2006
131
0
0
Rotterdam, NY
Sep 4, 2006
#16
  • Sep 4, 2006
  • #16
My car loses a bit of coolant and I think its going out the exhaust because the exhaust has a funny burnt type smell to it.

No drips anywhere and no evidence of any leaks.
 

cdog301

Founding Member
Aug 30, 2000
236
1
18
richmond ,ca
Sep 15, 2006
#17
  • Sep 15, 2006
  • #17
leak

lower intake was leaking letting water into #1 and 5 cylinder
all fixed no more leaks
 

mob

the guy who hits on his mom
20+ Year Stangneter
Oct 3, 2003
2,566
136
104
Dallas, TX
Sep 15, 2006
#18
  • Sep 15, 2006
  • #18
does it smell inside the car?

Your heater core my be on its way out.
 
8

8950HO

New Member
Mar 31, 2005
658
2
0
Sep 16, 2006
#19
  • Sep 16, 2006
  • #19
cdog301 said:
lower intake was leaking letting water into #1 and 5 cylinder
all fixed no more leaks
Click to expand...


Lower intakes need to be retorqued after install and running the motor at least once,maybe more,especially with Fel-Pro pos 1250 gaskets.

I`ve retorqued my lower 4 times to stop coolant seepage with 1250`s.
I won`t use 1250`s again!
 

QUIKSVT

New Member
May 19, 2006
93
0
0
Sep 16, 2006
#20
  • Sep 16, 2006
  • #20
First thing to look at, see if the front side of the motor (timing cover, etc) and surrounding accessories has a white colored oxidization look to it. A coolant leak from a water pump or thermostat housing can leak slowly and evaporate off of the hot surfaces it touches before hitting the ground and present you with that nice smell.
 
  • 1
  • 2
Next
1 of 2 Next Last
You must log in or register to reply here.

Similar threads

K
86 GT Water Pump
  • Kade5114
  • May 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
70
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 11, 2026
nickyb
P
Engine Mysterious coolant leak at back of engine
  • palerider94
  • Jan 18, 2026
  • Fox 5.0 Mustang Tech
Replies
1
Views
164
Fox 5.0 Mustang Tech Jan 19, 2026
AeroCoupe
Engine Coolant boiling in hose?
  • Teen'93stang5.0
  • Jun 3, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
97
Fox 5.0 Mustang Tech Monday at 8:38 AM
Mustang5L5
J
2001 coolant issue
  • jr273
  • Jan 24, 2026
  • The Welcome Wagon
Replies
1
Views
134
The Welcome Wagon Jan 24, 2026
Noobz347
Fox Help
  • 93fox85
  • Mar 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
181
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 23, 2026
Noobz347
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?