1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

ac troubles...

Discussion in '4 Cylinder' started by kensul12, Aug 4, 2009.

  1. Aug 4, 2009 at 6:33 AM
    #1
    kensul12

    kensul12 [OP] New Member

    Joined:
    Aug 4, 2009
    Member:
    #20617
    Messages:
    3
    Gender:
    Male
    Vehicle:
    05 tacoma 4wd
    longtime tacoma fan here....this one is pissin' me off though....Need to be clear, I am not mechanically inclined...

    4wd 4cylinder access cab - 2005 w/ 105 k miles ( yea, i drive a lot)
    2005 Tacoma - 4 cylinder - 4wd
    ++++++++++++

    Last august I replaced my AC compressor w/ OEM part. The mechanic is an excellent, reputable ex Toyota guy...

    This spring, the ac was acting up and he determined that the revolution sensor needed to be replaced. Since then, it has failed 2 more times. He has replaced it 3 times now (i've only been charged for the intitial occurence)

    After the last occurence, he contacted Toyota and they determiend that the compressor could be causing the problems and they are going to warranty a new one. They won't cover his labor so I offered to do so.

    The mechanics concern is that there may be something else causing the AC system to fail. I have zero confidence that this is going to work (fixing it tommorow) and the revolution sensor is going to fail again.

    The mechanic told me that if it does fail again, there is a way to bypass the revolution sensor. Or, I start paying him to look into other areas ( electrical system surges etc etc).

    Any input as to the road I am on and how to find the end? I am over $2000 into this problem so far and looking for an end....

    Thanks for any input..
     
  2. Aug 4, 2009 at 6:36 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,136
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Welcome to TW!

    Im beating my head thinking of what the issue could be, but Im not an expert in the AC dept. :(
     
  3. Aug 4, 2009 at 6:55 AM
    #3
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    49,733
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5 (+250k AND COUNTING), 88 SR5 PU (SOLD), 98 TRD OR (CRUSHED)
    5100's all on fours
  4. Aug 4, 2009 at 10:51 AM
    #4
    kensul12

    kensul12 [OP] New Member

    Joined:
    Aug 4, 2009
    Member:
    #20617
    Messages:
    3
    Gender:
    Male
    Vehicle:
    05 tacoma 4wd
    for the input...will print and give to him...He definetly refers to it as the revolution sensor and it's on the bill that way....
     
  5. Aug 5, 2009 at 11:33 AM
    #5
    BradleyScottETC

    BradleyScottETC Class IV Category 8 Elite VIP Member (Only)

    Joined:
    Aug 2, 2009
    Member:
    #20521
    Messages:
    1,754
    Gender:
    Male
    First Name:
    Bradley
    Lake County, FL
    Vehicle:
    10 4.0 AC 4x4
    sounds like he's referring to a compressor or blower motor transducer to me, which will tell the computer wether or not there is current on that particular piece of equipment. For example, if there is some sort of monitor like I am saying on the blower, and it is telling the computer that the blower is not running, then the computer is going to shut the compressor off so it doesn't freeze the evaporator coil.

    It sounds like there is a problem with your blower, perhaps that is what caused the compressor to fail in the first place, but you'd have to tell me more about how the air is malfunctioning.
     
  6. Aug 7, 2009 at 6:08 AM
    #6
    kensul12

    kensul12 [OP] New Member

    Joined:
    Aug 4, 2009
    Member:
    #20617
    Messages:
    3
    Gender:
    Male
    Vehicle:
    05 tacoma 4wd
    Bear with me - as stated, I am not mechanically inclined...

    On wednesday, the mechanic installed a new compressor and revolution sensor as planned. When the job was complete, somehow, the compressor wasn't getting power. (at this point, i wish he was typing to make sense - don't fault him for my naiveness)

    He told me the he could start searching for power surges or losses, but that could be timely and costly. His short term solution was to hard wire the compressor. It is always 'on' now. He advised that if I wanted, he could add a toggle switch so I could manualy shut it off after warm months to save on mileage.

    All seems up and up to me (not thrilled about a toggle when I have to resell it someday). I do notice that in 1st and 2nd gear something under the hood is whining a bit louder than before ( a guess is that it sounds like power steering)
    So, that's where I'm at. If you think he hacked it and there is a better solution, by all means fire away. Keep in mind it's me talking, not the mechaninc.

    Thanks,
     
  7. Aug 7, 2009 at 6:15 AM
    #7
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    49,733
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5 (+250k AND COUNTING), 88 SR5 PU (SOLD), 98 TRD OR (CRUSHED)
    5100's all on fours
    The power for the clutch comes from the IGN through a relay controlled by the A/C amplifier. I still think your amplifier is bad or the cltuch relay is.
     
  8. Aug 7, 2009 at 6:25 AM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,136
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    X2.
     
  9. Aug 7, 2009 at 6:57 PM
    #9
    Isthatahemi

    Isthatahemi Well-Known Member

    Joined:
    Apr 29, 2009
    Member:
    #16582
    Messages:
    1,156
    Gender:
    Male
    Vehicle:
    TRD OFF ROAD
    BFG AT's, Weathertechs, Hoppy's brake controller.
    How bout taking it to a dealer? Your probably would not be this deep into this mess if you had. Dealers are expensive, but one thing they tend to excel at is troubleshooting.
     
To Top