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  Mustangsandmore Forum Archive
  '74 to '78 -- The Mustang II
  my car heats up past 240 when i stop the car or at a stop light or in trafic

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Author Topic:   my car heats up past 240 when i stop the car or at a stop light or in trafic
randy77II
Journeyman

Posts: 2
From: riverside,ca,usa
Registered: Jun 2003

posted 08-07-2003 12:36 AM     Click Here to See the Profile for randy77II        Reply w/Quote
I need to know if anybody has that problem with ther car or how to fix it someone told me to put on a electric fon to cool the radiator when im stoped i can turn it on to cool the engine i hope its not my water pump that was back braker to put on sore for a week please help mustang2/302/modine radiator new.

BlueMule
Gearhead

Posts: 1781
From: Kent Island, MD USA M&M # 2423
Registered: Sep 2002

posted 08-07-2003 07:25 AM     Click Here to See the Profile for BlueMule        Reply w/Quote
Welcome to M&M.

Try a pressure test. It will rule out head gaskets and other internal leaks. Is the bottom radiator hose easy to squeeze together with your fingers and thumb? That means the reinforcement wire is gone and most probably is colapsing. If the water pump has been recently replaced, was the fan put back on facing the right direction? Also, the pump may be a reverse rotation pump for a serpantine belt rig. With a normal V belt, the impeller is running the coolant in the wrong direction. If the radiator shroud is gone, you should try to scare one up. That's enough to get your hands dirty. Keep us posted.

------------------
-Paul

70 Mach1 351C
79 Ranchero GT
97 Expedition XLT 5.4
00 SVT f150 Lightning 4149 of 4966 Born on: 06/26/2000

'If you're not the lead dog, the view never changes.'

[This message has been edited by BlueMule (edited 08-07-2003).]

N266fords
Gearhead

Posts: 1662
From: Sierra Vista ,Az USA
Registered: Apr 2003

posted 08-08-2003 01:57 AM     Click Here to See the Profile for N266fords        Reply w/Quote
dont rule out a stuck thermostat or bad rad cap..if the cap is not holding enough pressure it will boil over is it really hot or is your guage and or sending unit failing.. if your stat is not closing all the way it wont allow the rad to hold the fluid long enough to cool it and it will over heat..bruce

MooseII78
Journeyman

Posts: 47
From: LA
Registered: Nov 2001

posted 08-08-2003 10:13 AM     Click Here to See the Profile for MooseII78        Reply w/Quote
have you ever had the radiator rodded out? check for flow in the radiator (dont scald yourself. If you have the correct 7 blade fan on there and flow then i would start with rodding the radiator out. Theres not alot of room for air movement in the II, if the radiator is not in good shape it will heat up on you at low speeds.

MooseII78
Journeyman

Posts: 47
From: LA
Registered: Nov 2001

posted 08-08-2003 10:15 AM     Click Here to See the Profile for MooseII78        Reply w/Quote
duh i just saw you have a new radiator. Yeah like they said above check for correct pump

robertjb
Journeyman

Posts: 7
From: Shingle Springs
Registered: Jan 2003

posted 12-13-2004 01:07 PM     Click Here to See the Profile for robertjb        Reply w/Quote
This is just a thought but these Ford engines
with air had a ported vac switch that when
the car was sitting and idleing, the switch
would change the dist from ported vac to
manifold vac. This in turn would cause the
engine to idle faster supposedly cooling it
down. Check the pvs.

fred
Gearhead

Posts: 184
From: berea ky
Registered: Oct 2004

posted 03-10-2006 07:11 PM     Click Here to See the Profile for fred        Reply w/Quote
you did not say if you have the original fan on the vehicle, if so the thermostat in the fan may be worn out and the fan cannot sense the temp of the air and go into lockup, try watching the fan while idling and see if it locks up as temp rises if not get a new fan clutch much cheaper than electric fan.

Whitson
Gearhead

Posts: 290
From: Western Canada
Registered: Dec 2005

posted 03-13-2006 10:59 AM     Click Here to See the Profile for Whitson        Reply w/Quote
You've got to have the shroud. Mine never overheated with a 351W using stock rad & stock flex fan as long as I used the shroud.

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