DrRabbit
Member
Thanks.It probably is the compressor.
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Thanks.It probably is the compressor.
My money is on the compressor clutch.. Most of the time that is the issue.Thanks.
Be the first to file... there’s no CA suit for this because no one has lawyered up and started one...How has this not turned into a class action against Ford? this many failures of the AC doesn't seem like something to not have a recall or extended warranty for.
Step one is to positively identify the volume of cars impacted versus produced.Be the first to file... there’s no CA suit for this because no one has lawyered up and started one...
;i've sort of got a strange issue. On a hot day (95F+), twice I've noticed the AC stops working after doing a few long hard accelerations. It stays off and doesn't come back on. It did recover once when I let it idle for a bit. When I looked at the compressor when it was in this state, it didn't appear to be engaging/disengaging when pressing the AC button. Today I tried to replicate it but AC was working fine (It was a bit cooler out today 80F).
I looked in the factory service manual in the A/C section and didn't see anything specific about if and at what RPM the A/C compressor clutch disengages. On other cars I've seen, the A/C compressor is typically disengaged if the engine RPM is above around 3000 RPM.I'd like to know if the ECU has the logic to disable the compressor on hard acceleration to 1. Free up power and 2. Prevent damage.
Back in the day when I was running a megasquirt, there was a setting for that. It's not a stretch to think ford does the same.
I would be really surprised if the AC didn't shut off at WOT - that's '80's EFI technology, and the reasoning is as valid today as it was then. Remove any parasitic losses as you can when you're @ WOT for max performance when you need it.;
I'd like to know if the ECU has the logic to disable the compressor on hard acceleration to 1. Free up power and 2. Prevent damage.
Back in the day when I was running a megasquirt, there was a setting for that. It's not a stretch to think ford does the same.
Not knowing the difference between fixed and variable displacement compressors, im assuming the fixed means that regardless of its RPM, it moves the same amount of fluid, in which case it would not be unnecessary to disable. But from a power perspective it only makes sense. I also think it would be pretty violent to have it engage at a high RPM.I looked in the factory service manual in the A/C section and didn't see anything specific about if and at what RPM the A/C compressor clutch disengages. On other cars I've seen, the A/C compressor is typically disengaged if the engine RPM is above around 3000 RPM.
Apparently, the 2.3L Ecoboot Mustang uses a different type of A/C compressor (ie, "Externally Controlled Variable Displacement A/C Compressor") vs the 3.7L and 5.0L Mustangs which use a "Fixed Displacement A/C Compressor".
It did say the "Externally Controlled Variable Displacement A/C Compressor" in the 2.3L Ecoboost was controlled based on engine RPM (didn't say anything beyond that), but the 3.7L and 5.0L section had no info at all talking about the A/C compressor being controlled based on engine RPM.
I would hope Ford has incorporated control logic to cut out the A/C compressor above a certain engine RPM.