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Coolant Leak

  • Thread starter Thread starter vote_no
  • Start date Start date Sep 5, 2008

vote_no

New Member
Sep 5, 2008
1
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0
Sep 5, 2008
#1
  • Sep 5, 2008
  • #1
edit: 1998 Mustang GT

Don't know much about cars, so I figured you all might help. I've got a coolant leak, the origin of which is pretty uncertain. It leaks very quickly for a while, and then later stops. There's some coolant around the thermostat, so I've been told it is most likely the thermostat gasket not sealing properly. The thermostat makes a sort of repeated clicking noise after the engine's turned off.

The other interesting thing is that, earlier today, I noticed that the coolant level was very low in the reservoir, but then I drove it for a while and it was almost full. My understanding is that engines have an overflow reservior, is it possible that it's somehow been overfilled and that's why it's leaking?

I'm just grabbing at straws because I'd rather buy a $2 o-ring than go to a mechanic.
 
G

Gerardo

New Member
Aug 25, 2005
31
0
0
pasadena, tx
Sep 5, 2008
#2
  • Sep 5, 2008
  • #2
does your intake has the aluminum crossover or is it all plastic. if it is plastic you will need to replace your intake for the one with aluminum crossover.
 

02nightmaregt

To hell with your Mustang, I want to see your HOG!
Jul 1, 2007
513
4
19
Southern Indiana
Sep 5, 2008
#3
  • Sep 5, 2008
  • #3
The 98's do not have the alum. crossover. Right around where your seeing that coolant is where they are notorious for cracking. Thats what i am guessing has happened to yours. Sounds like a good time for a PI swap. Find out for sure first though.
 

fudleyd

New Member
Jan 10, 2003
180
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0
Littleton, CO
Sep 5, 2008
#4
  • Sep 5, 2008
  • #4
02nightmaregt said:
The 98's do not have the alum. crossover. Right around where your seeing that coolant is where they are notorious for cracking. Thats what i am guessing has happened to yours. Sounds like a good time for a PI swap. Find out for sure first though.
Click to expand...

This certainly could be the case here...

I still have my stock non-aluminum intake and have been lucky I guess. When mine does crack though I wanna upgrade to a roots blower...lol.
 

RandyStinchcomb

New Member
May 25, 2005
1,159
3
0
Randallstown, Md
Sep 7, 2008
#5
  • Sep 7, 2008
  • #5
02nightmaregt said:
The 98's do not have the alum. crossover. Right around where your seeing that coolant is where they are notorious for cracking. Thats what i am guessing has happened to yours. Sounds like a good time for a PI swap. Find out for sure first though.
Click to expand...

not true, ANY 4.6 that has had the intake replaced wth the updated FoMoCo intake WILL have the aluminum x-over, even Non-Pi's....I do agree that it prob is a split/cracked intake and that a PI intake swap would be a wise choice.....
 
B

blubullett

Member
Jun 22, 2006
535
6
18
Modesto, CA
Sep 7, 2008
#6
  • Sep 7, 2008
  • #6
fudleyd said:
This certainly could be the case here...

I still have my stock non-aluminum intake and have been lucky I guess. When mine does crack though I wanna upgrade to a roots blower...lol.
Click to expand...

Hopefully it is cracked I can hear it now..."honey, I need a new intake cause mine is cracked and the only one who makes one is kenne bell"
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,298
18,003
224
Massachusetts
Sep 7, 2008
#7
  • Sep 7, 2008
  • #7
The coolant bottle on the 4.6l is not an overflow. It's a degas bottle designed to separate air from the coolant mix. Notice there is no radiator cap. The cap is on the bottle and is pressurized. If it's low, add some fluid.
 

02nightmaregt

To hell with your Mustang, I want to see your HOG!
Jul 1, 2007
513
4
19
Southern Indiana
Sep 7, 2008
#8
  • Sep 7, 2008
  • #8
RandyStinchcomb said:
not true, ANY 4.6 that has had the intake replaced wth the updated FoMoCo intake WILL have the aluminum x-over, even Non-Pi's....I do agree that it prob is a split/cracked intake and that a PI intake swap would be a wise choice.....
Click to expand...

I know this but he never said his was updated. If its stock it plastic
 
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