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ST204 '98 GT A/C running kills revs during clutch+shift

PostPosted: Fri Jul 03, 2020 10:32 pm
by mistamontiel
Same motor as my last babe (RIP stupid brats had me total with half-second to react last year in my 30th birthmonth -.-)

My '92 did all the same, I have to rush my clutch+gearbox and/or blip/ride throttle on the upshifts even if I want my air conditioner which is rare for me even where I am.. well maybe this is why I rarely think about it, just wish to know what is causing it

Stay safe

Re: ST204 '98 GT A/C running kills revs during clutch+shift

PostPosted: Sat Jul 04, 2020 7:44 am
by gtfour93
It sounds like a bad A/C idle up device. It's also known as a magnet valve located by the firewall.