Question about 2004 Lincoln LS

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Parking brake keep getting service park brake warning light what do i do

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  • sjwalker435 Nov 17, 2008

    my ac started blowing hot at the same exact time

  • Anonymous Nov 26, 2008

    Llight keeps flashing "Service P" meaning parking brake. What do I do?

  • chappy1 Nov 27, 2008

    Same problem ... service parking brake warning, ac blowing hot regardless of temp AND check engine light on.

  • Anonymous Dec 05, 2008

    just had this same problem...has any one heard if there is sometype of recall

  • bodeski1 Dec 13, 2008

    Same problem on 2005 LS .. service parking brake warning, ac blowing hot regardless of temp AND check engine light on.

  • Anonymous Dec 15, 2008

    me too!!! Same problem on 2005 LS .. service parking brake warning, ac blowing hot regardless of temp

  • Anonymous Jan 18, 2009

    Same thing, heater blows hot, runs high in spite of reducing temperature. Service "P" light on.

  • geneandleona Feb 18, 2009

    I had the same problem (hot air coming out of dash vent no matter what climate control was set to) along with a service parking brake light. The hot air was caused by the dual coil water control valve. The dealer wanted $200 bucks for the part so I took it apart and blocked one of the coils from causing the problem. That's probably nt the best was to solve the problem but desperate times call for desperate measures. My wife can't control temperature to her side of the car seperately but doesn't complain. I think the parking warning light was just a coincidence and needs adjusting.

  • matnkcmo Feb 18, 2009

    Having same prob on my 2005 LS, service P brake warning and hot air blows out even set at 60 with A/C on, should be cold but is hotter than when I have it set at 70 or 75, are these 2 problems correlated???

  • csha411 Feb 18, 2009


  • Anonymous Mar 02, 2009

    I have the same problem at 52K miles. Service parking brake light and hot air out of passanger side of a/c when set at 60 degrees

  • kmwhite Mar 24, 2009

    I have a 2005 Sport and I have both of these problems as well, its constantly telling me to Service parking break, and navigation says something about parking break lead? Also, my AC doesn't work, no matter what you turn it on it blows hot. Seems to be a common thing after reading this?

  • pricanpride Mar 29, 2009

    Disc brakes and Pads were changed a month ago, Service "P" brake light was lighting up at the time. Once new equipment installed, the same problem persists. Note: I sometimes notice a faint squeal when driving, like one of the brakes is sticking. I assume a bad caliper.

  • lwlamm May 20, 2009

    I have the same problem on my 2005 Lincoln LS at about 52K miles. Service parking break light coming on after drive for a while and A/C is putting out hot air all the time no matter even when set to 60 degrees on both driver and passenger sides of car.

  • dulcekary73
    dulcekary73 Mar 28, 2013

    I guess it's a common problem I'm having the same problem with my 2006 Lincoln LS. Hot air blowing out of the A/C and service park brake light on



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05 LS, i also have the same problem, heater blowing hot and parking brake light coming on. i just read that the malfunction from the (dual coil water control valve) will cause a spike in the system an will set off the parking brake light. The dealer wanted $645 w/tax to install a new water control valve Ford Part # 2R8Z18495AA, YEAH RIGHT !!!! I found the part on line for $110 w/shipping, i am going to install my self. Its sits behind the radiator passenger side about 6" deep from the fender. very easy to get to , one bolt, one sensor needs detached and the 3 heater hoses that go to it need clamped off before replacing it. As far as the brake light i read that you have to get the brake re-calibrated by the dealer, I dont know yet. If you want the web address for the part let me know. i also posted where to find your code for your door access on a 05 LS.

Posted on May 19, 2009

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There is adjustment in the switch in the hand brake assembly - which will eliminate this .you will have to remove cover in console to adjust - should be self elplanatory once you can see it. Drop me a line if still required - get a book at library it is covered.

Posted on Dec 17, 2008

  • melajoecaz Jan 19, 2011

    Removed console cover, unable to locate adjustment, where is it located??
    e-mail response to:


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I had a problem where super hot air blew out of the air vents no matter what the a/c was set to. It ended up being a couple of fuses.

Posted on Jan 28, 2012

  • Michael Newman May 13, 2013

    which fuses

  • Andrw Toolen
    Andrw Toolen Mar 27, 2014

    My a/c is doing the same thing! I can live with the service parking brake light, just not the NO a/c!


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Posted on Jan 02, 2017

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SOURCE: parking brake warning light is on , how to fix

Look for the switch at the hand break lever and inspect the action. If it is sticking add lubricant (wd40 lanolin etc). In the case of the switch actuating with the light still on replace the switch. As for the cost at the dealer, only they can tell you that. Cheers Timo.

Posted on Apr 27, 2010

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SOURCE: 1996 rodeo, ABS/Brake warning light on dim, will

Get an OBD reading

Posted on Oct 07, 2009

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