Q45 a/c malfunction

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buzzerboy
Posts: 2
Joined: Sun Jul 06, 2008 2:52 pm
Car: 1993 Q45t

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Good morning. I have a 1993 Q45t that quickly stopped blowing cold a/c air during a weekend trip. One minute the a/c was fine, then the next I smelled some burnt rubber, then the a/c air went warm. No noises were noticed at all. So, we turned it off and finished our trip. Upon arrival, I parked the car and turned on the a/c, then looked down below the alternator where the compressor is at. I noticed some sparks coming from the front clutch area with a bit of burnt rubber smell again. The air was still warm, so I turned it off for good until it's fixed. My question is the compressor gone or is it just the clutch, or both ? When an a/c compressor goes doesn't it give you more of a warning sign of an upcoming failure than just abruptly quitting ? Thanks, and any help is appreciated.


jimbyjimb
Posts: 492
Joined: Thu Apr 03, 2008 8:57 pm
Car: 1992 Infiniti Q45

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You need a new belt. Your a/c pulley froze or your idler froze. Morse than likely it's the compressor.

Q45tech
Moderator
Posts: 14296
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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Yes the compressor has a warning it is located on the calender.10 years or 100k is the point where you expect failure any day.

2 cents per mile of the 15 cents you save monthly has built up the $2,000 you might need to properly replace compressor and dryer and o rings plus general system cleaning leaving some balance for future evap and condenser and fan motors.

Most tend to function for 120-150k assumming you have kept up with preventative mainteance and compressor oil changes and dryer replacemnt.

I actually stretched mine to 225,000 miles and 12 years with 2 dryers and 3 oil changes. The replacement lasted 75k without mainteances. Number #3 has 20,000 miles so far.


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