wing.jai

hello folks. i have a 92 honda civic sedan dx. i just change out the drier, ac compressor, expansion valve, climate control, new belts on my car. i went to a local mechanic shop and have the freon charge in. i have no leaks and my ac will blow out cold air for a good 5-10 mins after that ac compressor will shut off. i turn off the car and let it sit for like a good 10 min and turn it back on. the ac will kick back on and it will be cold again but will shut off after 5-10 min. does anyone know what causes this? can it be a bad relay? or pressure switch?

Former User

Does the condenser fan also shut off when the compressor clutch disengages or does the fan continue running?

wing.jai

hey @ronjo@ht. how you been? its been a while. yes the condenser fan still continue running when the ac compressor clutch disengage.

Former User

Been good. Thanks.

This^ rules out the pressure switch, thermostat, and heater control panel.

The problem could be a bad compressor clutch relay, ECU, or compressor clutch (gap or coil). Start by testing the relay, the armature plate/pulley gap, and the field coil.

wing.jai

the ac compressor is brand new from the local auto part store. that same problem was doing with the old ac compressor so i bought a new one thinking it that was the problem but it wasn't.

Former User

Test the relay.

wing.jai

if its not the relay, the last resort will be the ecu?

Former User

One step at a time. Start with the clutch relay. Test it or swap it with the condenser fan relay to see whether the compressor now operates properly.

wing.jai

yes sir! ahaha i get bit too excited sometimes when it getting closer to diagnosing it.

Former User

wing.jai

@ronj@ht - Sorry for late reply, but yeah it end up to be faulty relay. You're the man!