Question about 2003 Ford Focus

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My focus st170 is 6.5 years old, and has done approx 98K miles. This Morning the interior heater would only blow out cold air despite being set to the warmest setting. After a journey of only 2 miles or so the temp gauge and the oil temp gauge went off the chart, steam could be seen escaping from the coolant and the coolant boiled when the dam was opened. Obviously the engine was overheating but do you know what may be causing it??

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  • Ford Master
  • 5,467 Answers

Among things are a stuck thermostat. Oil problem can point to mixing oil and water from head gasket problem. The oil should be a separate system.

Posted on Jul 08, 2017

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: ford focus air conditioning

Just get em re-gassed.I live in Spain and use it an awfull lot and two and a half to three years is about it.

Posted on Jun 24, 2008

emissionwiz
  • 74945 Answers

SOURCE: Cooling System

No you have air trapped in the cooling system, rasie the front of the car up as high as you can get it, fill the coolant bottlre to the top and run the engine for about 15 minutes at a high idle, let it cool down, it should purge itself of air once it is cool, make sure your radiator cap is good.

Posted on Aug 25, 2008

  • 11 Answers

SOURCE: 97 mustang overheating and blowing cold air

Get a compression check to find out if you have a bad head gasket, I have a 96 with the 3.8L that had the same problems at first. then it started to blow out antifreeze thru the expansion tank, the head gasket finally blew the rest of the way going down the highway

Posted on Dec 04, 2009

  • 1 Answer

SOURCE: 1. My 2006 2WD Explorer (65,000 miles) has

jtg

Posted on Jan 14, 2010

  • 4102 Answers

SOURCE: 2000 Ford Taurus Antifreeze boiling over

hi, the problem you are having is down to one of a couple of problems, now as you state the air blows cold then this points towards the thermostat not opening so this then dont pump the coolant round the engine resulting in the top half of the being hot and the bottom half cold so this is why you only get cold air.

so the first thing you should do is get the thermostat changed.

you also need to bare in mind that the problem could be a damaged water pump this does happen from time to time so check for any signs of water leak where the water pump is by the timing belt, if their is no signs of leak then the thermostat is the likely cause.

you also need to think that as the engine has over heated this could have caused the head gasket to fail so this will need looking at to if after changing the thermostat you have the same over heating problem.

so replace the thermostat as this has clearly gone and then when you re-fill the coolant make sure any bleed screws are undone if you have any on your coolant system usually located in one of the top hoses running around the engine, (not all coolant systems have one as many are self bleeding so dont worry if you dont see any bleed screws) now when you start filling the coolant up make sure you only trickle the coolant in to prevent any air lock building up in the system.

if you are unsure what you are doing then please leave this to someone who has some idea of the kind of work involved in this type of repair

Posted on Jul 19, 2010

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