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2003 Lincoln TC heater blows cold air until car warms up

In cold weather, the heater will blow cold until car warms up. I was sitting for 10 minutes idling and noticed the temperature gauge jumping up toward "Hot". When I began driving, the temp came down to normal. I also noticed an odor of antifreeze. I suspect a leak and hoses are due to be changed, But can I have another issue, like the thermostat, water heater, or core? Should I change any of these parts when I change the hoses, belt, and anti-freeze? I remember the old Lincolns were notorious for heater core problems.

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  • Expert
  • 125 Answers

Thermostat is broken... if your in car and smell antifreeze then check heater core its behind glove compartment it may be leaking....

Posted on May 14, 2017

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Posted on Jan 02, 2017

tommyboinow
  • 324 Answers

SOURCE: 2001 mazda 626 heater/temp gauge?

your head gaskets are bad.... This is a common plroblem wiht those symptoms.

Posted on Nov 26, 2008

  • 1118 Answers

SOURCE: 96 Jeep Country-Heater blowing warm; NOT hot

unless you got visable signs of leakage its not heater core, but it could be pluged with sediment. take off both heater hoses and flush it both ways until it runs clear. you can also mix a little baking soda and water and pour in core and let set for a while and then flush.

Posted on Jan 17, 2009

  • 1 Answer

SOURCE: 2002 Lincoln Navigator. Heater is

try changing the thermostat if thats not it check and see if you have water leaking in the passenger side floor board if so then you need a new heater core

Posted on Feb 24, 2009

fieromudder
  • 132 Answers

SOURCE: I have a 1996 Honda Accord. The heater blows out

yes that means the thermostat is stuck open or you are low on coolant, check level first.

Posted on Oct 23, 2010

kittycar
  • 43 Answers

SOURCE: My 2003 Rendezvous heater blows

It may just be the way the car works. I have a 2005 Altima and it does the same thing, but just doesn't blow really warm air. Try putting the air on recirculating, that may help a little. If it's still REALLY cold when you are stopped, I would check/replace the thermostat first. If you want to check the thermostat to see if it's working yourself, just remove it, and inspect it while it is cold, then put it in a pot of boiling water for 3 mins, inspect it, if the valve has opened it is okay, if it looks the same (aka valve was open to begin with) it may just be staying open and it should be replaced.

Posted on Jan 08, 2011

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