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Lincoln LS Overheating Problems

195 messages,  Last post on May 03, 2013 at 3:02 PM

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What is this discussion about? Lincoln LS, Engine, Sedan

Messages Page 8 of 20

#71 of 195 Re: Happster [jaime007] by darl444

Jun 16, 2011 (12:09 pm)

Replying to: jaime007 (Sep 07, 2010 12:18 pm)
Did you ever resolve the issue with the cooling fan. My 2000 Lincoln LS is doing the same. It cools fine for many miles, the sort of randomly decides to overheat. Pull the connector off the Cylinder Head Temp sensor, the fan will go to high and cool the engine. I changed the CHTS, but it still does the same thing. Do you know if ther there is a cooling fan control module separate from the fan?

#72 of 195 Re: Linlcon ls v6 [miamidave] by darl444

Jun 16, 2011 (12:12 pm)

Replying to: miamidave (Oct 09, 2010 2:02 pm)
Hi Miamidave
 
Doesn't look like jaime007 ever replied. Did you resolve the overheating on your Lincoln LS?

#73 of 195 Re: Happster [darl444] by vinnygibs

Jun 16, 2011 (2:03 pm)

Replying to: darl444 (Jun 16, 2011 12:09 pm)
It had nothing to do with the fan at all. There is an engine fill port underneath the plastic ls cover. The gasket on that fill port went bad and was allowing air into the system drylocking it. The gasket was about 10 bucks you will also need an Alan key to remove the cap. good luck

#74 of 195 Re: Happster [darl444] by Happster

Jun 16, 2011 (2:42 pm)

Replying to: darl444 (Jun 16, 2011 12:09 pm)
I've read posts from otherswith yourissue where they replace the hydraulic fan with an electric one with good results. My issue was with the famous cracked degas bottle letting coolant out and air in at high rpms, making it tough to find the leak. And its been great since.

#75 of 195 Lincoln LS overheating issue by lcostello

Jun 21, 2011 (10:55 am)

I wanted to thank all of you for solving my overheating problem. I purchased a one owner 2000 Lincoln LS recently and the other day it overheated during initial start-up (with the air one). I changed the thermostat and all was better for the next 2 weeks then I noticed the temp slowly climbing again. I found this site a few days ago and checked my DEGAS bottle last night and after a few cycles found a small drip coming from the seam. I'm pretty sure this is where the cooling system is sucking air and caused the temp sensor to go up so quickly. I ordered a new Dorman Degas bottle last night for $62 which I plan to replace when it arrives.
Thanks again for having this Forum. You saved me a pricy dealer visit and many headaches.

#76 of 195 Re: Lincoln LS overheating issue [lcostello] by Happster

Jun 21, 2011 (3:12 pm)

Replying to: lcostello (Jun 21, 2011 10:55 am)
That has to be your issue. Glad to help!

#77 of 195 Re: Happster [Happster] by darl444

Jun 23, 2011 (8:34 am)

Replying to: Happster (Jun 16, 2011 2:42 pm)
Thanks for the info on the Degas bottle. I couldn't find any problems with it so have not replaced it. Do you know where the cooling fan controller is located? The fan is hydraulic, and rotates freely, at idle it operates at normal, or low speed, but does not go to a higher speed has the temperature starts to increase with increased engine RPM. But I can bring the operating temperature back to normal by just adjusting the cabin heater fan to high and desired temp to max with the engine at 2000 RPM (in park and A/C off).
 
I'm also experiencing a problem now with the A/C compressor clutch. After about 10 minutes of normal operation, the clutch will cycle, but not fully engage, all the while making a squealing noise.
 
Can the clutch be replaced without taking the compressor out?

#78 of 195 Re: Happster [darl444] by Happster

Jun 23, 2011 (8:47 am)

Replying to: darl444 (Jun 23, 2011 8:34 am)
Sounds like an air pocket obstruction. Note that the crack in the degas bottle occurs on a seam and is tough to see. I'd try a pressure test by pinching or blocking the outlet and overflow lines. Not sure where the controller is. Never had that problem but many others have and wired in an electric fan with success. Also not sure about the clutch, but my guess would be that it is all external to the compressor and can be replaced without depressurizing the system or removing it. Good luck!

#79 of 195 2001 ls 3.9 v8 overheating by dezuz

Jun 29, 2011 (6:06 pm)

ok as everyone else i have an over heating issue with my LS..i've replaced the de-gass bottle, thermostat housing, and thermostat .. bled the air and see no leaks...yet once i get to operating temp it seems to over heat causing the hydralic fans to kick on which at low speeds is quiet but noticeable and at driving speeds it gets louder...any suggestions cause i am stumped...no check engine light either btw ...

#80 of 195 Re: 2001 ls 3.9 v8 overheating [dezuz] by Happster

Jun 30, 2011 (7:19 am)

Replying to: dezuz (Jun 29, 2011 6:06 pm)
I've heard of a lot of people having trouble with the hydraulic fans and many have resolved the issue by wiring in an electric one.

Messages Page 8 of 20

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