Should the 3rd speed fan ever kick in when temp's pegged normal - outside temps in the low 100's with A/C running? Have an A/C problem that is a little odd. When first starting out in the morning the first speed fan kick in A/C running and temps in the low 80's - eventually 2nd speed will kick in intermit - compressor is quiet. Later in the afternoon - temps are in the
90's - mid to upper - compressor starts to make a groaning noise above 2000 rpms - 2nd speed fan always on. Occ. when revving high rpms - compressor may - like once a week kick off then kick back on. Temp gauge never goes above normal. If I put a hose to the condenser for a minute or two the compressor noise will goes away. By the way - inside vent temperatures are in the mid to upper 30's F after about 10 minutes of driving - sometimes less even with the compressor making noise.I took it back last week to an A/C specialist and he said it was an electrical problem - saw the fans in the morning kicking on and off into
2nd - but I think its a pressure problem - overcharged VERY slightly - the "specialist" didn't say what the gauge reading were (if he even took them). On his advice replaced the Fan Control module - no change and ordered a thermal switch for the rad.Any ideas on this one - compressor was replaced last year - as was dryer and expansion valve - don't want to trash a perfectly good compressor since it is cooling but the groaning noise is definately not normal especially since the noise will go away with water on the condenser.