2006 Burb Intermittent A/C

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October 28th, 2022, 5:42 AM

#21

Kenrbass

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Show my response above yours to a good mechanic and they should be able to do what I did to "hotwire" it.

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October 28th, 2022, 8:06 AM

#22

3Js

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It was "hotwired" and worked but my wife wanted it fixed "right" and not "jerry-rigged".

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October 28th, 2022, 8:16 AM

#23

Kenrbass

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My hotwire situation uses the hi and lo pressure switches to make it a safer hotwire for the ac system. I'm a retired master tech and sometimes the juice is not worth the squeeze on an older unit.

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October 28th, 2022, 9:27 AM

#24

3Js

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Quote:

Originally Posted by Kenrbass

My hotwire situation uses the hi and lo pressure switches to make it a safer hotwire for the ac system. I'm a retired master tech and sometimes the juice is not worth the squeeze on an older unit.

Are you saying the BCM is at fault and you are bypassing the BCM control over the AC?

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October 28th, 2022, 5:52 PM

#25

3Js

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Quote:

Originally Posted by 3Js

UPDATE: Oct. 27, 2022.
Dropped off the burb at a shop.

Had the PCM replaced with one from company Flagship One. The shop replaced the HVAC control on the dash. Spent a few $$$$
Drove home agitated. Same issue. No AC. Not cycling.

Took it back today, a week later.
Evac system and refill. It was low maybe less than 1/4 lb of freon. Same issue. No AC. Not cycling
Changed the pressure sensors that I already replaced. Same issue. No AC Not cycling

Had to leave it overnight and they are going to check it out tomorrow. The mechanic doesn't know why it isn't working.
This is exactly why I took it to a shop because I already did everything they did and thought I needed a more experienced mechanic....I guess I was wrong.

So, it looks like it was a shorted electrical connector to the pressure transducer switch that was the final piece of the puzzle.
Could have been the original problem or a combo of the other components replaced.
AC is working now....

Last edited by 3Js; October 28th, 2022 at 6:00 PM.

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