2002 Sonata GLS: Pushing the A/C button but A/C does not turn on. What can I check?

[Thee Chicago Wolf [MVP]]

I know I used my A/C as late at October of last year and it was
working fine. This weekend, I tried to use it but when I push the A/C
button (which did light up) I did not feel the usual initial engine
strain associated with it and did not feel the air from the vents get
cold. It's as if the A/C does not engage. I had recently changed the
cabin air filter but this can't have anything to do with it as I have
changed it myself on many occasions with no ill effects. Nothing was
disconnected when I changed the filter and I was careful to ensure no
wires go pinched, cut, or had come loose. Anything I should check
first?

- Thee Chicago Wolf [MVP]

 

[Vic Hyu Garcia]

I know I used my A/C as late at October of last year and it was
working fine. This weekend, I tried to use it but when I push the A/C
button (which did light up) I did not feel the usual initial engine
strain associated with it and did not feel the air from the vents get
cold. It's as if the A/C does not engage. I had recently changed the
cabin air filter but this can't have anything to do with it as I have
changed it myself on many occasions with no ill effects. Nothing was
disconnected when I changed the filter and I was careful to ensure no
wires go pinched, cut, or had come loose. Anything I should check
first?

- Thee Chicago Wolf [MVP]

1.- Refrigerant level (too low).
2.- Compressor clutch (wires and fuse).

 

[Ed Pawlowski]

I know I used my A/C as late at October of last year and it was
working fine. This weekend, I tried to use it but when I push the A/C
button (which did light up) I did not feel the usual initial engine
strain associated with it and did not feel the air from the vents get
cold. It's as if the A/C does not engage. I had recently changed the
cabin air filter but this can't have anything to do with it as I have
changed it myself on many occasions with no ill effects. Nothing was
disconnected when I changed the filter and I was careful to ensure no
wires go pinched, cut, or had come loose. Anything I should check
first?

- Thee Chicago Wolf [MVP]

Given the age of the car and the time lapse since last used, I'd take a WAG
and say low refrigerant. Could be a clutch problems, but that is less
likely, IMO. Yes, even though it has not been used, it can leak. Sometimes
that allows the deals to dry and harden faster. Time to find a good AC
shop, before the big rush on the first hot day.

 

[Thee Chicago Wolf [MVP]]

Given the age of the car and the time lapse since last used, I'd take a WAG
and say low refrigerant. Could be a clutch problems, but that is less
likely, IMO. Yes, even though it has not been used, it can leak. Sometimes
that allows the deals to dry and harden faster. Time to find a good AC
shop, before the big rush on the first hot day.

Thanks for the heads up. I am surprised to hear that it could be low.
My wife's 98 Corolla's A/C still run like a champ so I thought it was
unusual for mine to be low (if it is). The dealership quoted me $169 +
tax (leak test + recharge) and my personal mechanic would do the same
for $100 cash. I do have a local A/C shop so I can always ask them
what their rate is. Of course, if there is a leak, I understand that
could mean big bucks to fix.

- Thee Chicago Wolf [MVP]

 

[Thee Chicago Wolf [MVP]]

1.- Refrigerant level (too low).
2.- Compressor clutch (wires and fuse).

Thanks for the reply. My mechanic will be taking a look next week and
give me an assessment.

- Thee Chicago Wolf [MVP]