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

cooling problem

  • Thread starter Thread starter MattTheBat83
  • Start date Start date Jul 16, 2007
M

MattTheBat83

New Member
Mar 31, 2006
203
0
0
Jul 16, 2007
#1
  • Jul 16, 2007
  • #1
the temp gauge goes at least half way up when i drive on streets. on the high way it goes almost 3/4 to the top. in the last week i have changed the thermostat(180), the fan and clutch(police interceptor) flushed out the radiator and added new coolant. the radiator is less than 3 years old and all i can think is that my water pump is no good. any ideas?
 
S

Sicarius428

Active Member
Jan 6, 2004
2,085
5
49
Jul 16, 2007
#2
  • Jul 16, 2007
  • #2
Typically if your car is heating up on the freeway, that indication is that the radiator is not able to get rid of the heat. Do you have the piece of plastic that sticks out under the car bolted to the radiator support? You may also have an air bubble in your system which is pretty common for these cars if you just flushed the system.
Kevin
 
M

MattTheBat83

New Member
Mar 31, 2006
203
0
0
Jul 16, 2007
#3
  • Jul 16, 2007
  • #3
Do you have the piece of plastic that sticks out under the car bolted to the radiator support?
Click to expand...
not sure what you mean. this problem was happening before i flushed the radiator so i dont think there is air in the system. i let it run up to temp with the cap off
 
9

93lxdm78

New Member
Jun 19, 2007
71
0
0
Jul 16, 2007
#4
  • Jul 16, 2007
  • #4
My car ran 3/4 almost all the time.

The radiator wasn't doing its job. I went with a flexlite black magic fan and a afco racing radiator now its 1/4 up sometimes with the ac on in traffic it will go up but still well below the half marker.

Added bonus was the power I gained from ditching that stock fan robs alot of power my throttle response is alot better with it off.

I would at the least get a new oem replacement radiator and the electric fan kit. That should keep your car cool
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Jul 16, 2007
#5
  • Jul 16, 2007
  • #5
Good ideas above.

Assuming the gauge you're using is mildy accurate, the radiator is a place to look. Did you see lots of scale inside it?

Good luck.
 
S

sivart

New Member
Apr 15, 2007
28
1
0
Jul 16, 2007
#6
  • Jul 16, 2007
  • #6
MattTheBat83 said:
not sure what you mean. this problem was happening before i flushed the radiator so i dont think there is air in the system. i let it run up to temp with the cap off
Click to expand...
it looks like a buck tooth, if you look under your car and you'll see it, it will be right below your radiator. you should get an aftermarket gauge. did u get a new cap for your rad?
 
S

Sicarius428

Active Member
Jan 6, 2004
2,085
5
49
Jul 16, 2007
#7
  • Jul 16, 2007
  • #7
The piece of plastic is the air dam that goes under the car(black piece that sticks strait down about 3x36 in). What it does is creates a vacuume in the engine compartment to suck air through the radiator while moving. If you are missing that piece that may be a contributing factor as to why it is running warm at speed. Another thing to check is your radiator cap.
Kevin
 
M

MattTheBat83

New Member
Mar 31, 2006
203
0
0
Jul 16, 2007
#8
  • Jul 16, 2007
  • #8
the radiator cap is less than a year old and the radiator is about 3 years old. i reused it when i built this engine.
 
M

MattTheBat83

New Member
Mar 31, 2006
203
0
0
Jul 16, 2007
#9
  • Jul 16, 2007
  • #9
Did you see lots of scale inside it?
Click to expand...
what does that mean?
 
M

MattTheBat83

New Member
Mar 31, 2006
203
0
0
Jul 16, 2007
#10
  • Jul 16, 2007
  • #10
is it possible i put the head gaskets on wrong
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Jul 16, 2007
#11
  • Jul 16, 2007
  • #11
Scale = mineral deposits inside the radiator. Ever seen a nasty shower door? The same thing can occur inside the radiator.
 
You must log in or register to reply here.

Similar threads

Engine Themostat
  • Mindseye007
  • Jan 30, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
21
Views
637
Fox 5.0 Mustang Tech Feb 1, 2026
86HO5.0
8
M
Engine 1988 Foxbody - Overheating Summer
  • MDrisc
  • Oct 26, 2025
  • Fox 5.0 Mustang Tech
Replies
10
Views
473
Fox 5.0 Mustang Tech Nov 28, 2025
Mustang5L5
Resolved Got Too Hot!!!
  • PonyGTrider
  • Apr 27, 2025
  • Fox 5.0 Mustang Tech
Replies
7
Views
568
Fox 5.0 Mustang Tech May 6, 2025
PonyGTrider
O
2001 mustang gt overheating
  • orinsmiley11
  • Jul 17, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
264
1996 - 2004 SN95 Mustang -General/Talk- Jul 17, 2025
Noobz347
W
High Cylinder Head Temp - Not Overheating?
  • wtfwork12
  • Jun 26, 2025
  • 2005 - 2014 S-197 Mustang -General/Talk-
Replies
9
Views
1K
2005 - 2014 S-197 Mustang -General/Talk- Jul 1, 2025
wtfwork12
W
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?