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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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11.8 @ 120mph, then some bad news

  • Thread starter Thread starter Joe 5.0
  • Start date Start date May 2, 2007

Joe 5.0

Founding Member
Feb 1, 2002
1,184
2
38
Macomb, MI (metro detroit)
May 2, 2007
#1
  • May 2, 2007
  • #1
Finally got the Cobra to the track today. It ran pretty well, except for the coolant reservoir tube blowing off and sending coolant all over my engine. It made for a nice steam/smoke show for a minute or two till I figured it out.

All of my passes were within 118-120mph, but my 11.8 came with my best 60' of 1.75. I know with a lil less tire pressure and some better shifting I could get that down to ~ 11.5 or so.

Now on to the bad news.

Halfway home I started to see a nice trail of smoke behind me. About a minute later I saw my check engine light on, and right after that my low coolant light came on. So I immediately exited the expressway to check it out. I wasnt low on coolant, and actually the coolant in the overflow was either bubbling or boiling, not really sure. So I gave it a couple mins and started it back up. It seemed to run fine, at least for about 15 mins.

Then the CEL came on again and before I could get it pulled over to the shoulder it was smoking/steaming pretty good, and it made like a bad screeching noise for about 10 seconds.

So I'm thinking HG's, MAYBE a bad water pump (not likely). Hopefully the screeching wasnt my main bearings, but we'll see.

Its too bad, because I think I could get it to run a lil faster with just some practice, and then up the boost to ~ 15-16lbs and aim for 10's.
 

S/CBlack95GT

New Member
Apr 6, 2003
2,018
0
0
Tampa Palms, FL
May 2, 2007
#2
  • May 2, 2007
  • #2
Sounds like you popped a head gasket to me. Was the temperature high at anytime when you were driving it home?
 
W

wytstang

Mustang Master
Mar 14, 2004
4,988
4
78
Summerville,SC missing South Fl. weather :(
May 2, 2007
#3
  • May 2, 2007
  • #3
Damn that sucks, hopefully it's something cheap.
 

Wi Stang

Member
Jun 27, 2004
248
0
16
Fountain City, WI
May 2, 2007
#4
  • May 2, 2007
  • #4
I would guess headgaskets too, that sounds a lot like the symptoms.
Hopefully that is all that it is.
Good luck man, keep us posted.
 

Joe 5.0

Founding Member
Feb 1, 2002
1,184
2
38
Macomb, MI (metro detroit)
May 3, 2007
#5
  • May 3, 2007
  • #5
I'm thinking HG's too, I just wonder why it would happen on the cruise home at a steady 75mph versus at the track when I was flogging it.

And my stupid sending unit for the coolant guage went out again (autometer crap), so I'm not really sure what the temp was.
 

FlyBy763

Member
Apr 23, 2004
439
0
17
Palm Bay, FL
May 3, 2007
#6
  • May 3, 2007
  • #6
The screaching was probably just the coolant burning off from between the belt against the pulley if it was spraying coolant everywhere.
 

Joe 5.0

Founding Member
Feb 1, 2002
1,184
2
38
Macomb, MI (metro detroit)
May 3, 2007
#7
  • May 3, 2007
  • #7
Well I'm about to go look at it. What should I be looking for to see if it was a bad HG? I know to drain the oil and coolant. Will the plugs show anything if it was?
 

WhiteDevil

New Member
Feb 4, 2003
2,717
0
0
San Diego
May 3, 2007
#8
  • May 3, 2007
  • #8
Damn that combo sounds like a lot of fun. HOpefully its just the HG keep us updated!
 

trav_19

New Member
Oct 29, 2006
810
0
0
Jackson, MI
May 3, 2007
#9
  • May 3, 2007
  • #9
its a hg... the bulbling coolant gave it away i thought the bad new was the hose that poped off at the track that sucks what it really was...im sure it was blown at the track it just didn't really let go till you were stedy cruising at higher temps and steady pressure
 

Pokageek

Active Member
Jun 10, 2005
2,767
0
46
MA, USA
May 3, 2007
#10
  • May 3, 2007
  • #10
FlyBy763 said:
The screaching was probably just the coolant burning off from between the belt against the pulley if it was spraying coolant everywhere.
Click to expand...

:Word:
 

drakesdad

Member
Jul 29, 2005
961
0
16
Oregon OHIO
May 3, 2007
#11
  • May 3, 2007
  • #11
great times........sorry about the head gasket......I would change a gasket for a ET like that....
 

OrangeMustangGt

Founding Member
Mar 7, 2002
1,976
0
36
Cape Cod, MA
May 3, 2007
#12
  • May 3, 2007
  • #12
what gaskets are you using? get felpro MLS and be done with it!
 
Y

yellow1995Cobra

New Member
Dec 23, 2002
2,959
2
0
Massachusetts
May 3, 2007
#13
  • May 3, 2007
  • #13
ughhh that sucks man! You might be the first HG victim this season on the 94/95 section.. I know the feeling, it sucks!!

Well congrats on the good times, deffinantly alot more left in there at that power level with more track time.. Are you running skinnies now?
 

Joe 5.0

Founding Member
Feb 1, 2002
1,184
2
38
Macomb, MI (metro detroit)
May 4, 2007
#14
  • May 4, 2007
  • #14
Nope no skinnys, ran on the heavy 17x9.5 TTII's with 275's
 

ProKiller

Founding Member
Apr 26, 2002
3,064
15
78
PA
May 4, 2007
#15
  • May 4, 2007
  • #15
its a HG. the plugs should have a greenish hew to them. at least the cylinder that the gasket went south on.
 

fastfive0

"Your girl likes my stang better"
Founding Member
Mar 1, 1999
1,462
0
36
Wilkes-Barre,Pa
May 4, 2007
#16
  • May 4, 2007
  • #16
Last time that my 347 lost a HG it was also on the way home from the track. I think the steady highway driving is what finally kills em! Mine was on nitrous not a blower but same mph and effects lol.

Good luck!

George
 

Jackie Chan

I didn't read this.
Founding Member
Oct 17, 2002
2,507
4
48
Orlando, FL
May 8, 2007
#17
  • May 8, 2007
  • #17
been there done that.
 
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