ok my a/c stoppd working the other day. so i went to get the freon refilled. once they refilld it the compressor wouldnt kick on. so the guy bypassed it and ran it straight from the battery. he told me i had an electrical problem. im thinkin its the a/c relay does anyone know where it is and its for a 92 prelude SI

 

helms says
A/C compressor Clutch realay - Left side of engine compartment
try that

 

got a pic?

 

bump any other opinions?

 

try shorting the A/c compressor manually. do this by connecting the A/C pump wire to a 12v source. you can do it with the car running or not. if its not running, you'll hear a loud click. if it is running, you'll see the clutch engage. if it works, then see if its the relay. if the relay checks good, it might be your low pressure switch.

neil

 

ok i tried it and it engages. changed the relays and still nothing. where is the low pressure switch at?

 

bump any help i want my a/c back. lol thnx

 

I just fixed mine today by re-soldering the connections on the climate control circuit board in the dash. Thought I needed a new accumulator, but just turns out that it was losing the electrical connection on the board. If your lights on the climate control buttons flicker or don't come on at all, or if you have trouble swithcing the air flow buttons, you might want to look into that.

 

nope the light is bright green

 

yep, my car did the same thing. I just bypass the on switch, and made my own switch. you would have to know the color. let me know if you still can fix it i will like at my car and tell you the two wire color to jump the together.

 

howd you make your own switch gotta pic of it?

 

bump

 

anyone else

 

pm'ed you

neil

 

bump anyone else?

 

I had the same issue in my car.

It was a broken wire between AC pressure sensor and AC thermostat.

In my case the wire has broken about 15 cm (so 7 inch ) on the left from AC pressure switch.

The same story my buddy had in his civic.......

So first check the continuity between AC pressure switch and AC thermostat (it is the blue-yellow wire).

The AC pressure switch is on the left down side of AC condenser, you can access it by the bumper hole, and the AC thermostat is stright before passenger legs, on the evaporator box. You will need to remove the glove box panel to get a better access.

 

aight i'll try that tomorow

 

ok when i first start the car now the a/c will run for a little bit. but after a little bit of driving it turns off.

 

any opinions

 

kinda sounds like they didnt charge the system right. the low pressure switch keeps the pump from burning out.

neil

 

hmm i jus had it recharged couple days ago it was wrokin fine for a while

 

Behind the passenger-side headlight (right in front of the intake filter if you have an "ebay pipe"), there is a sightglass on your a/c lines. Turn on the a/c and watch that sightglass (works better to shine flashlight on it). If you can see air bubbles going by while the system is on then it wasn't fully charged/charged correctly.