A/C compressor rapid on/off after efan install ?
#1
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A/C compressor rapid on/off after efan install ?
Having a bit of an issue, I just installed a set of 05 efans and 34 inch rad in my 99 sierra, added the blackbear tune and had the fans turned on in the tune and used the BB single pin ac/tap harness.
got it all buttoned up and on defrost the fans kick on and off every 15-45 seconds, i understand on defrost the a/c condenser is used to dry out the air and it should kick on, but the consistant on and off seems to be weird to me. gut feeling says it should stay on for a bit then kick off, not off/on off/on consistantly.
any ideas guys ?
got it all buttoned up and on defrost the fans kick on and off every 15-45 seconds, i understand on defrost the a/c condenser is used to dry out the air and it should kick on, but the consistant on and off seems to be weird to me. gut feeling says it should stay on for a bit then kick off, not off/on off/on consistantly.
any ideas guys ?
#5
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Mine was constantly going into high speed mode aswell when the AC comp would cycle.
Got sick of it and installed a 212 temp sensor in rad hose to turn fans on high only when needed.
So much quieter now! dont have to turn off AC when at a drive through anymore, Flexlites are LOUD when on high.
Got sick of it and installed a 212 temp sensor in rad hose to turn fans on high only when needed.
So much quieter now! dont have to turn off AC when at a drive through anymore, Flexlites are LOUD when on high.
#7
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Frig, some good leads here, the fans are cycling its just far too often, its cold here in the mornings -16 today and i usually leave the defrost on when i park it, so when i remote start it in the mornings to warm it up the fans are constantly cycling and it wont warm up, if i shut the heat off completely the fans stay off and the gauge comes up to temp in the normal amount of time, basically i feel theres an error or its confused as to keep the fans off or on. I just cold started it with the defrost on and the fans kicked off and on 6 times in a minutes time. Justin from Blackbear updated the tune to the 02 up settings.
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#10
I had mine hooked up like that and had to change it.. my fans would cycle pretty quick too depending on the outside temp and humidity.. all you need for the ac tap wire is a power source to that wire.. so i have mine wired up to a switch in the cab so i can cut my high speed fans on when i want to.. but then if the coolant temps reach a certain temp or my ac pressures reach the desired pressure my low speed and high speed fans will still cycle on by the pcm.. but by me having the switch in the cab i can also cut my high speed fan on when i want..