Re: A/C problem
Ray O wrote:[color=blue]
> "ferd berford" <email@example.com> wrote in message
>> HELLO wrote:[color=darkred]
>>> 2003 4 cyl Camry My a/c has been powering off (compressor lights start to
>>> blink) I took it to the neighborhood shop and they could not figure it
>>> everything seemed in order (no charge) . I'm afraid of what the toyota
>>> might charge so any Ideas on what is the problem is appreciated os I
>>> go there & get blindsided.
>> The blinking light means the compressor failed to start when the system
>> called for A/C, most likely a bad compressor relay on such a new car,
>> which is what my 2003 Camry needed. This was not too expensive, about
>> $112 to fix it and $86 to diagnose it. In the worse case it is a bad
>> compressor, middle case is a loss of R134 so the low pressure switch cut
>> out the compressor. If it is a low gas condition make sure they find and
>> fix the leak (for your sake and the environment).
> Actually, the blinking light means that the compressor RPM sensor detected a
> different compressor RPM from the engine RPM. To re-energize the
> compressor, turn the AC button off and then back on. If you heard a belt
> squeal just before the light started flashing, the belt slipped and the
> system shut down. Even if you did not hear a belt squeal, check AC
> compressor drive belt tension - with the engine OFF, you should not be able
> to depress the belt more than about an inch. If you can depress the belt
> more than an inch, it got stretched out over time or the adjustment slipped.
> Check the condition of the compressor drive belt. It should not be glazed
> or cracked on the underside.
> If the system needs a refrigerant charge, you would not get a flashing AC
> light, the compressor would just not engage. An easy way to check
> refrigerant charge is to look at the sight glass on the receiver drier in
> front of the radiator. The receiver drier is s cylinder with steel lines
> going into and out of the top. With the AC on, it should look like water is
> flowing past the glass. If you see foam or nothing, the system needs
I wonder if I paid for a relay (and diagnostics) that was not
needed..... A Toyota dealer wouldn't do that would they? Thanks for
the information, I was going on what the service manager told me and a
little bit of knowledge about the low pressure switch.