- Joined
- Jul 22, 2020
- Messages
- 416
hello,
so i bought a new to me 1990 toyota corolla and the ac was ice cold. a month later that ac was warm. i took it to a ac repair shop where they told me that the system had leaks in the lines and the evaporator. the ac shop changed out the evaporator for a new one, new expansion valve, new drying air filter and new o rings in some lines. the shop also supposedly fixed a couple of leaks in the lines.
it was cooling all right when i picked her up from the ac shop.
two weeks later the ac cools at night time but during the hot day it does not cool. i took it to the ac repair shop again. it was probably 90 degrees fahrentit temperature for the morning and the best ac center vent temp measurement was 55 degrees fahrenheit.
the ac shop took some coil cleaner and cleaned the conderser coils. the ac center vent temperature dropped 5 degrees to 50 degrees fahrenheit after the condenser coil cleaning.
this car was originally r 22 so only has low pressure valve. the low pressure psi was 28 psi. the ac shop that that was good low side pressure as according to ac shop low side pressure is good between 30 and 45 psi.
ac shop says that to make car cool better that the condenser fan motor might have to be replaced, an electric auxiliary fan might have to be installed , including also perhaps a new condenser.
what stumps me is why when i bought the car the ac was ice cold?
i would imagine the guy who sold the car to me probably recharged the freon right before i went to see the car, but that doesnt explain that if there are no leaks why the car doesnt cool in the day like before when i bought it.
i dont know whether to follow the ac guys recommendations or take it to another ac shop to get a diagnostic and see if there is a freon leak still somehwere possibly.
wih outside temperatures at around 90 degrees fahrenheit. the center vent ac temp is 60 degrees fahrenheit. when under 2000 rpm perhaps at 90 degrees F outside temperature the center venct ac temp best is 50 degrees fahrentheit.
only at night when outside temperature is around 80 degress F does the ac center vent temp go down to 40 degrees Fahrenheit.
what to do?
thanks
so i bought a new to me 1990 toyota corolla and the ac was ice cold. a month later that ac was warm. i took it to a ac repair shop where they told me that the system had leaks in the lines and the evaporator. the ac shop changed out the evaporator for a new one, new expansion valve, new drying air filter and new o rings in some lines. the shop also supposedly fixed a couple of leaks in the lines.
it was cooling all right when i picked her up from the ac shop.
two weeks later the ac cools at night time but during the hot day it does not cool. i took it to the ac repair shop again. it was probably 90 degrees fahrentit temperature for the morning and the best ac center vent temp measurement was 55 degrees fahrenheit.
the ac shop took some coil cleaner and cleaned the conderser coils. the ac center vent temperature dropped 5 degrees to 50 degrees fahrenheit after the condenser coil cleaning.
this car was originally r 22 so only has low pressure valve. the low pressure psi was 28 psi. the ac shop that that was good low side pressure as according to ac shop low side pressure is good between 30 and 45 psi.
ac shop says that to make car cool better that the condenser fan motor might have to be replaced, an electric auxiliary fan might have to be installed , including also perhaps a new condenser.
what stumps me is why when i bought the car the ac was ice cold?
i would imagine the guy who sold the car to me probably recharged the freon right before i went to see the car, but that doesnt explain that if there are no leaks why the car doesnt cool in the day like before when i bought it.
i dont know whether to follow the ac guys recommendations or take it to another ac shop to get a diagnostic and see if there is a freon leak still somehwere possibly.
wih outside temperatures at around 90 degrees fahrenheit. the center vent ac temp is 60 degrees fahrenheit. when under 2000 rpm perhaps at 90 degrees F outside temperature the center venct ac temp best is 50 degrees fahrentheit.
only at night when outside temperature is around 80 degress F does the ac center vent temp go down to 40 degrees Fahrenheit.
what to do?
thanks