Engine overheating

Tiny
JEDHEAD1985
  • 2002 LINCOLN LS
  • 165,000 MILES

My car keeps running hot, I recently changed the thermostat yesterday and it is running hot again today. It gets so hot that I can hear the water boiling inside of the coolant fill tank. It also leaks hot coolant and steam inside the car on the driver's side on the floor by the brake and acceleration pedals. It also leaks alot of water outside of the car on the drivers side. Can you please help me before I lose it?

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Sunday, September 8th, 2013 AT 9:10 PM

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Tiny
CARADIODOC
  • EXPERT
  • 28,192 POSTS

Leaking coolant inside the car is the result of a leaking heater core. If the car came with air conditioning there will be a condensate drain pan that will collect most of that coolant and drain it onto the ground behind the front tires.

When enough air gets into the cooling system, that can stop the thermostat from opening. Thermostats only open in response to hot liquid, not hot air. Also, once the coolant level gets low enough, the water pump won't be able to circulate it, and overheating will result. Take care of the leak first and most likely there will be no more overheating.

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Sunday, September 8th, 2013 AT 9:52 PM
Tiny
JEDHEAD1985
  • MEMBER

Is the heater core expensive? Im on a tight budget at the moment. So a heater core will leak on the drivers side?

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Sunday, September 8th, 2013 AT 10:09 PM
Tiny
CARADIODOC
  • EXPERT
  • 28,192 POSTS

Actually, the heater core is on the passenger side. Coolant normally leaks into the drain pan for the water that condenses when the air conditioning system removes the humidity from the air, but it depends on how the system was designed. I suspect pressure in the cooling system is causing that hot coolant to spray over to the driver's side.

Heater cores are not outrageously expensive but the labor to replace them is. On most Ford products the steering column must be lowered and the dash must be pulled back to remove the heater box and actuators. The air conditioning hoses must be disconnected so that means recovering the refrigerant, then evacuating the system and recharging it. Thanks to your politicians and the EPA, air conditioning work is also expensive.

As a temporary measure you could disconnect the two heater hoses at the firewall, then buy a plastic fitting to connect them together. That will bypass the leak and it should stop the overheating. Keep in mind though that obviously you won't get hot air from the heater, but you won't get it from the defroster either. The air conditioner will still run in defrost most, like normal, to remove the humidity from the air so it won't condense on the cold windshield and cause fogging, but since the air will be cold, it will take longer to defog the windshield. If the other guy runs a red light and causes a crash, his lawyer and insurance investigator will look for things like that to try to shift some of the blame to you. That rarely happens, but I wouldn't be doing my job if I didn't at least mention it.

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Monday, September 9th, 2013 AT 2:10 AM
Tiny
JEDHEAD1985
  • MEMBER

Could I put the fitting on myself? And is the firewall easy to get to?

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Monday, September 9th, 2013 AT 7:30 AM
Tiny
JEDHEAD1985
  • MEMBER

Could it be the water pump?

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Monday, September 9th, 2013 AT 8:30 AM
Tiny
CARADIODOC
  • EXPERT
  • 28,192 POSTS

Sorry that I dropped the ball and failed to reply sooner. Have you solved the problem?

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Sunday, January 19th, 2014 AT 7:22 AM
Tiny
KEEPITGIGI@GMAIL.COM
  • 2006 LINCOLN LS
  • 3.9L
  • V8
  • RWD
  • AUTOMATIC
  • 194,507 MILES

I have replaced all aspects of cooling water pump, fan thermostat and reservoir still states hot after driving a short distance also have bleed system. Once it registers hot pull over turn off for ten to fifteen minutes then it is fine. What gives?

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
2CARPROS KEN
  • ADMIN
  • 7,612 POSTS

Hello,

Is sounds like you may have a blown head gasket, please follow this guide to confirm

https://www.2carpros.com/articles/head-gasket-blown-test

Please run this test and get back to us so we can continue helping you.

Cheers, Ken

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
GOOSE
  • 2001 LINCOLN LS
  • 75,356 MILES

My 2001 Lincoln overheats very quickly, I can see water boiling in the engine coolant compartment. The water from the compartment get so hot that it starts leaking from the top of the cap. The car also turns of after being in park for a couple of minutes and it also turns off when Im waiting at a stop light. Can you please help?

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
RASMATAZ
  • MEMBER

Check the thermostat and water pump operation if okay get it block and pressure tested

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
BIGBLOCKVP
  • 2002 LINCOLN LS
  • 6 CYL
  • RWD
  • AUTOMATIC
  • 150,000 MILES

Car runs fine and operates normally without overheating until I turn on the A/C. If I disconnect the wiring plug on the compressor all is fine, but if reconnect it car immediately starts to overheat. Could the clutch be seized causing excessive load on the engine? What is the solution? Can I replace only the clutch to prevent having to recharge?

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
HMAC300
  • EXPERT
  • 49,210 POSTS

First see if your cooling fans are working on radiator. When you turn on A/C at least one should work. Then check fuses under hood fuse box there are relays there as well if fuse is good then check relays.

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
BIGBLOCKVP
  • MEMBER

Okay will do, but would the car overheat in hot summer temperatures if fans were not working? I have had this problem all last summer so I kept the compressor unplugged. I had no AC, but normal engine temperature at all times.

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
HMAC300
  • EXPERT
  • 49,210 POSTS

Normally there are two fans one comes on when A/C is turned on the other may have failed. If a mechanical fan the shroud around radiator is important as it will not direct air through radiator if not there. Also, it can be a radiator problem or something else but you need to start.

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
BIGBLOCKVP
  • MEMBER

Perfect. Will start there. Thanks!

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
2CARPROS KEN
  • ADMIN
  • 7,612 POSTS

Please let us know what happens.

Cheers, Ken

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
THREES WILD
  • 2004 LINCOLN LS
  • 110,000 MILES

I have a 2004 Lincoln LS and I'm having the same problem as lemon cycle, the overheating and the fan not coming on. How do I find the fan senor attached to the engine? Then how to I check it to make sure it has malfunctioned?

The radiator housing has been replaced and so has the upper radiator hose. I took it in for code reading and it only gave throttle problems which may have been caused when I removed the clamp

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,293 POSTS

Have you checked the relay and the sending unit?

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
THREES WILD
  • MEMBER

I'm not sure what those things are. I did check the 60 amp fuse and it was good, I then removed what I thought my be the fuse in the engine compartment by swapping with another fuse and that worked also.

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)
Tiny
KANDIDS
  • 2004 LINCOLN LS

Engine Cooling problem
2004 Lincoln LS V8 Automatic 75000 miles

My car is over heating so I took it in to a mechanic he said it was the heater control valve. I got that fixed and then my battery went dead, couldnt turn on the car after part was replaced. So I got a new battery and now my car is still overheating. It has a gurgling sound coming from the coolant reservoir. But there is plenty of coolant.

Got any ideas?

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Thursday, June 1st, 2017 AT 3:15 PM (Merged)

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