So... Explain the AC Speed Sensor PLEASE!
06-23-09, 01:52 PM
#1
So... Explain the AC Speed Sensor PLEASE!
What a nightmare I have been having with my AC system. Compressor seized awhile ago.
Finally replaced it with another one I had laying around.
Well.... a lot of work later... I had a blown o-ring on one of the lines under the car.... the R134 conversion kit was leaking.... the clutch was muffed so I had to put my old one one.... etc... all with spending nearly $200 in charges.
So here I am... its charged... no leaking... and the AC light is BLINKING! wtf.
After some testing... I found out the Speed Sensor on the compressor is dead or something.
I hooked up the extra one I had laying around and the AC light does not blink anymore... but it blows warm still.
So without me discharging and spending more time and money... the AC speed sensor... what does it do? Will it prevent the AC from blowing cold?
Finally replaced it with another one I had laying around.
Well.... a lot of work later... I had a blown o-ring on one of the lines under the car.... the R134 conversion kit was leaking.... the clutch was muffed so I had to put my old one one.... etc... all with spending nearly $200 in charges.
So here I am... its charged... no leaking... and the AC light is BLINKING! wtf.
After some testing... I found out the Speed Sensor on the compressor is dead or something.
I hooked up the extra one I had laying around and the AC light does not blink anymore... but it blows warm still.
So without me discharging and spending more time and money... the AC speed sensor... what does it do? Will it prevent the AC from blowing cold?
06-23-09, 01:56 PM
#2
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could it be your relay under the hood is bad? Thats what is wrong with mine, i just go and switch the hose when i need a/c or heat and since i am from NY i dont need them usually around the same time period.
06-23-09, 06:49 PM
#5
Heater VSV is what your talking about. There is an arm selects and de-selects hot water routing from the engine. The VSV can go bad, but usually it's a weak Vacuum connection either at the VSV or or across the engine. I'm not entirely sure that's your issue, but you can give it a shot. Just find the metal cylindrical looking thing closest to the firewall on the passenger side. On it's underside you'll see an arm. You can try to move the arm manually, but it may not stay. With the engine running, select ac and then go back to the VSV and find where the vac line leads to. Temporarily disconnect and connect to another nearby vac source. If that moves the VSV arm then weak vacuum to that line is the problem. If not, the VSV is busted or you are back to square one. If you need further info I can get pics.
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