2004 Lincoln LS no heat and no AC diagnosis

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  • Опубліковано 11 жов 2024
  • Customer complaint - Air conditioning does work in the summer and heat doesn't work in the winter. Fix it.
    Forgot to mention that another shop recommended a control head for over $1000. The customer didn't state if there were other repairs included with this estimate.
    I found 2 codes that we want to focus on.
    B2797 Driver water valve circuit open
    B2799 Passenger water valve circuit open
    Both of these water valves are built into one assembly and share a power source. That power is supplied by a 10 amp fuse under the hood.
    I found that fuse was blown, let's find out why.

КОМЕНТАРІ • 40

  • @ThePracticalMechanic
    @ThePracticalMechanic  5 років тому +12

    I was not able to film the repair video but I ended up replacing the Heater Control Valve, the upper radiator hose, flushing the heater core and cooling system, replacing the leaking oring on the AC dryer, recharging the HVAC system and replacing the blown fuse. The actuator codes did not return and the entire system functioned properly. Thanks for watching.

    • @terrypringle5881
      @terrypringle5881 4 роки тому +1

      Great presentation... I have a heater problem on my 2002 lincoln ls..wish u were close by.

    • @Titans0820
      @Titans0820 3 роки тому +1

      About how much did all that cost?

  • @servihomestead4324
    @servihomestead4324 5 років тому

    Nice, work. Even if I never work on this exact problem, watching logical troubleshooting is always a learning experience.

  • @DylanRabier
    @DylanRabier 5 років тому +1

    Great job. Yeah the PP Hook was having some issues 😁 Thanks for sharing Chad 👍

    • @ThePracticalMechanic
      @ThePracticalMechanic  5 років тому

      Got the hook back from repair today so I will have to do some testing and see how it behaves.

  • @billyyoder8171
    @billyyoder8171 5 років тому +1

    Thank you Chad. Good job again. Have a blessed and safe week.

  • @CubasAutomotive
    @CubasAutomotive 5 років тому +1

    Lol... it was going well in the beginning, that darn Hook! I liked the process... once again, I think you nailed the issue & efficiently at that. Part 2 in the works? 😊😉

    • @CubasAutomotive
      @CubasAutomotive 5 років тому

      Never mind. Just saw the pinned comment. Lol

    • @ThePracticalMechanic
      @ThePracticalMechanic  5 років тому +1

      I sent in the hook and just got it back. Hopefully it’s all better now.

  • @GeorgeJFW
    @GeorgeJFW 5 років тому +2

    Nice work man I need to get a hook hopefully the one I pick up doesn't crap out 😜

  • @weldingjunkie
    @weldingjunkie 5 років тому +1

    Great video chad, I love my power prob 3 I was going to buy the hook but didn’t know much about it. They are like scanners who knows 😂 ... thanks for sharing brother... Jay

    • @ThePracticalMechanic
      @ThePracticalMechanic  5 років тому

      I really need to explore all the options that the hook has. One of my favorite features is the selectable voltage reference. Great way to test or adjust 5 and 8 volt sensors on the bench.

    • @weldingjunkie
      @weldingjunkie 5 років тому

      ThePracticalMechanic I also love the built in breaker and you can set it at whatever amperage you want. That’s perfect

  • @codysautodiagnosticsprogra8706
    @codysautodiagnosticsprogra8706 5 років тому +1

    I’m on my 3rd hook due to reasons like this!
    I shouldn’t have bought my first hook since I’ve only used the tool maybe 20 times. I grab my pp4 before the hook nowadays.

  • @picoboo5048
    @picoboo5048 5 років тому +1

    Hopefully the coolant hasn't wicked up the wiring. Have seen that on a couple cars before. Should put new caps on the service ports also, since they are missing.😀

    • @ThePracticalMechanic
      @ThePracticalMechanic  5 років тому

      I was unable to get the sub harness but I did clean it out. 🤞🏼

  • @SAAutoRepair
    @SAAutoRepair 5 років тому +1

    Nice job pal

  • @VoltageDropDiagnostics
    @VoltageDropDiagnostics 5 років тому +3

    Great video Chad! Are you getting the hook fixed?

    • @ThePracticalMechanic
      @ThePracticalMechanic  5 років тому +2

      Yes. I should have back any day now and then I will have to test it out. They were surprised when I told them the serial number. It’s a very early production unit.

  • @spelunkerd
    @spelunkerd 4 роки тому

    What an interesting repair. I take it the 'water valve circuit' on the passenger side and driver side control solenoids that direct the flow of warm coolant back to the heater cores on each side?

  • @flatratemaster
    @flatratemaster 5 років тому +2

    First problem Lincoln LS, second problem Lincoln LS😉🤣🤣🤣

    • @ThePracticalMechanic
      @ThePracticalMechanic  5 років тому +1

      Lol I cut one of my rants about the the Lincoln LS because it took too long.

    • @flatratemaster
      @flatratemaster 5 років тому

      @@ThePracticalMechanic 😉 put it up as a separate video

  • @larrydingle77
    @larrydingle77 2 роки тому

    Could that be the problem on my 1998 Continental my heat and A/C don’t work either and all the fuses are good I have radiator fluid and I tried recharging a/c valve reading that it’s full any Other suggestions

  • @jamesroberts5589
    @jamesroberts5589 4 роки тому +1

    Wish there were more mechanics like you on youtube. I've got a 2005 Lincoln LS v6, and the fan want come on causing the car to overheat. The car comes with a self diagnostic by holding down the defrost and off at the same time then hit auto. It came up with 12 65 and 27 99 codes From what I noticed with the job on this video both of those codes were listed under hearter control vavle. Do you think its likely this is why the fan want come on?

  • @ChanceJolivette
    @ChanceJolivette 4 роки тому

    My problem is I recently got into my 2005 Lincoln v6 and the whole a/c heat screen area in the inside is dark no power so I can't operate anything, radio works but heat defrost heated seats etc does not, I checked fuses and relays that look like they pertained to the a/c and don't seem to be blown but a point in the right direction would be appreciated as to what fuse it might be

    • @ThePracticalMechanic
      @ThePracticalMechanic  4 роки тому +1

      I have not run into an issue like that before with the LS but the ford trucks and explorers do that when the control head fails. My normal practice is to pull the control panel out and check powers and grounds, if that is good the control panel is normally bad.
      Sometimes it’s a bad soldering joint on the circuit board and if you wiggle the connector the controls will come back to life. If this happens you can try resoldering the connections or send it too someone that specializes in the repair.

  • @dereklangkamp5087
    @dereklangkamp5087 Рік тому

    I’m experiencing a very similar issue with my 04 LS 3.9, which I wanted to inquire how you flushed the heater core and which refrigerant did you use to re charge the system. Thank you!!

    • @ThePracticalMechanic
      @ThePracticalMechanic  Рік тому +1

      We have a cooling system flush tool that pulse air and water into the system to break up any debris and push it out. We flush the heater core both directions.
      After having the ac system apart it is important to pull a vacuum on the entire system to remove air and moisture. I then recharge with r134a refrigerant.

  • @brandonkubik2844
    @brandonkubik2844 2 роки тому

    Hey can you answer something for me I don’t know what the codes mean when I do a climent Diagnostic

  • @jessicraig1
    @jessicraig1 3 роки тому

    Just wanted to see if perhaps you could maybe help me out in locating the low service port as well in an 05' Lincoln LS.

  • @Pumfugaming
    @Pumfugaming 4 роки тому

    Hi my 2005 Lincoln ls a/c doesn’t blow hot or cold. But it does blow. When I ran the diagnostics it shows the code 12/64. Do you have any advice or could it be a lot of differing things.

  • @laurawatkins1649
    @laurawatkins1649 4 роки тому

    I've got a 05 LS when I turn on the heater orA/C the ext temp says 79 I've got the other at 60 it stays hot all the time even while driving thanks

  • @super.sports.official
    @super.sports.official 2 роки тому

    I have 2007 isuzu kb 300 lx
    Heater and AC both not working
    It's blowing normal air

  • @tattooman6386
    @tattooman6386 3 роки тому

    I need help my ac and heat units won't turn on

  • @U4Eye
    @U4Eye 2 роки тому

    Piece of crap LS ford's as Every owner has tons of issues especially with the Transmission control valve