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No power to climate control, fan, or compressor clutch 2004 Buick Rendezvous V6


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sdenton
Novice

Jul 30, 2014, 12:40 PM

Post #1 of 13 (2247 views)
post icon No power to climate control, fan, or compressor clutch 2004 Buick Rendezvous V6 Sign In

I just bought my car from a private party. I was told the ac had been "disconnected" by the tow company she bought it from. When the car is running there is no power in the climate control and no fans blowing. Not even the ac light comes on. This is the same for the heating. Under the hood the compressor belt is going but the compressor is not engaging. I've checked the fuses and anything I can visibly see and nothing looks disconnected. The passenger side headlight is new and it looks like they replaced the bumper. Can anyone tell me what prepares would have been made to require disconnection of the ac and how I might reconnect it. Thank you!


(This post was edited by sdenton on Jul 30, 2014, 2:24 PM)


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jul 30, 2014, 1:57 PM

Post #2 of 13 (2237 views)
Re: No power to climate control, fan, or compressor clutch Sign In

Year, make, model, and engine size please.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


sdenton
Novice

Jul 30, 2014, 2:23 PM

Post #3 of 13 (2227 views)
Re: No power to climate control, fan, or compressor clutch Sign In

I apologize its a 2004 Buick Rendezvous V6 3.7L


Discretesignals
Ultimate Carjunky / Moderator
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Jul 30, 2014, 2:29 PM

Post #4 of 13 (2223 views)
Re: No power to climate control, fan, or compressor clutch Sign In

Did you check to see if any fuses are missing? The owner's manual should have the fuse locations and what goes in what.





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sdenton
Novice

Jul 30, 2014, 3:00 PM

Post #5 of 13 (2214 views)
Re: No power to climate control, fan, or compressor clutch Sign In

I checked the ones that go to the clutch but will have to find out which ones go to the other components... Could there be an electrical wire not connected that controls all these things together?


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jul 30, 2014, 3:06 PM

Post #6 of 13 (2212 views)
Re: No power to climate control, fan, or compressor clutch Sign In

There is no telling, but usually pulling fuses is easier. Did you ask them how they disabled the system?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Hammer Time
Ultimate Carjunky / Moderator
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Jul 30, 2014, 3:07 PM

Post #7 of 13 (2211 views)
Re: No power to climate control, fan, or compressor clutch Sign In

You have a 3.4 or a 3.6 engine. They never made a 3.7.

Check the fuses real good in the inside fuse box. It would have to be the one that powers the control head if any. He could have taken the control head out and unplugged it but I can't see any reason for ever doing that.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



sdenton
Novice

Jul 30, 2014, 3:22 PM

Post #8 of 13 (2207 views)
Re: No power to climate control, fan, or compressor clutch Sign In

The seller said the towing company disconnected it but she isn't sure why. Now that im into it this far in research I'm sure it was just a sugar coating to sell the car. It sounded like a quick fix and honestly I'm a woman who didn't know any better lol. I will be calling the company tomorrow and see if I can get to the bottom of it. I did notice some of the fuses in the inside fuse box had a copper look to the plugs... I know fuses are inexpensive thank God lol. I really have to exhaust everything before I go to a shop.


sdenton
Novice

Jul 30, 2014, 3:25 PM

Post #9 of 13 (2205 views)
Re: No power to climate control, fan, or compressor clutch Sign In

Do you know where the control head would be located?


sdenton
Novice

Jul 30, 2014, 3:40 PM

Post #10 of 13 (2200 views)
Re: No power to climate control, fan, or compressor clutch Sign In

Also would the compressor clutch spin if the ac is not turned on?


Hammer Time
Ultimate Carjunky / Moderator
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Jul 31, 2014, 2:50 AM

Post #11 of 13 (2176 views)
Re: No power to climate control, fan, or compressor clutch Sign In

The control head is the place where you control the heat/AC.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
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Jul 31, 2014, 3:10 AM

Post #12 of 13 (2173 views)
Re: No power to climate control, fan, or compressor clutch Sign In

I can't figure out if you bought this from the tow company or someone who bought it from them then to you?


Seems it was possibly towed from an accident or don't know?


Otherwise the guesses are with noted parts replaced suggests an accident and some scenes will cut wires to kill a running engine depending on the scene.


Another is compressor seized before or after this and anyone just wanted it to run without compressor engaging at all ever so just pulled whatever till it quit to stop belt from just burning over compressor which wouldn't last minutes to move or use this.


An inoperable compressor (locked up) will be just a pulley if that's still good if disabled but apparently not well as heat and other controls could still have worked.


There's some lost history as to what happened so far and I'm lost with sequence of events with the towing and why,


T



kev2
Veteran
kev2 profile image

Jul 31, 2014, 1:56 PM

Post #13 of 13 (2159 views)
Re: No power to climate control, fan, or compressor clutch Sign In

It will not be so simple to disable the whole system -
If you are interested we can offer advice BUT

first-
I would get the vehicle SCANNED for codes- it is FREE at autozone. advance. orielys type parts stores.
IT IS FREE-
My thinking removing fuses would have a effect on other systems.
The vehicle has 2 types manual and automatic- do you know which you have?
If you are ambitious you can started checking the fuses ALL fuses dash and underhood- do not just look at them use a tester to confirm they are good.

I think there will be codes- knowing which system we cam tell exactly where tp check-
Can you us a test light or dvom?






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