i got a 1993 Taurus, GL... 3.0.. its got the stardard manual a/c unit..
last year the a/c quit working and woud start right up and work fine.. i
traced it down to an electrical problem but going straight to the a/c
compressor and jumping it and it would be real cold in the car for a few
minutes while it had the compressor engaged... it turned out to be the
cycling switch that is screwed into the accumulator as it would work
sometimes and sometimes not..... well this year, a few days ago it
started pumping hot air... i opened the hood and could see where the a/c
would cycle on and then off, on and off... it seemed like it was 10
seconds on and 10 seconds off.... the accumulator used to get real cold
and sweat last year..... not its just engine heat of the engine temp...
i put some gauges on the vacuum line and pressure line... the pressure
was like75 to 125 and the suction side was like 20 to 45..... from what
i understand it seems to be the correct pressure..... i got the shop
manual and they have a chart and from what i understand at 80 deg.
outside temp. this seems normal... its been a while since i did any a/c
work so i might be wrong and might be reading the temp. chart wrong????
the book also has a trouble shooting chart...if it recycles very fast,
off and on then its low on refrigerant????? but then i read it as not
being low???? and if its not low then the next step is a blocked up
orifice or evaporator coil or line???? any help would be appreciated..
i tried to just jump the recycling switch with a jumper wire and the
compressor stayed in the ON the whole time i had the wire there, but the
pipe(vacuum line) nor the accumulator got any cooler..... one last
question... the inside of the car.. the temp dial for the a/c??? if you
leave the dial on hot will the compressor still come on and only let
cold air into the car or does this dial/switch also control the
operation of the compressor??? if so then i gotta go there to check out
the switch(but dont want to do this if its only a diverter of the cold
air from the evaporator coil to the inside of the car.. right now the
underhood parts that normally get cold, do not get cool or cold at
thanks for a reply...