Mechanics

A/C?

2007 Nissan Pathfinder • 6 cylinder 2WD Automatic • 60,000 miles

I noticed my 2007 Nissan Pathfinder was not getting as cold as normal. It is pretty hot here at 100 degrees plus so I know it is worker harder than ususal. I took my SUV into the dealership for check out and they stated I had a problem with My A/C compressor, and the Expansion Valve (in the dash), and the Dryer/Condensor all had to be replaced. They quoted me $1995.00 for all the work. Most of that was labor. I took my SUV into a smaller company (non-dealer), and they could not find anything wrong except a little low on freon. They put A/C dye to check for a leak and could not find anything. Do you think the dealer was trying to over-charge me. Would I need to replace my Expansion Valve and Dryer/Condensor if my Compressor had problems?
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Sfbrown
August 9, 2011.




Is the system colder now that the refrigerant was topped off?

Wrenchtech
Aug 9, 2011.
Yes it is. My Dad suggested I put a thermometer in the vent to see what the temperature was. When I put the thermostat on 70 degrees, the temp read around 60 degrees (110 degrees outside). Later that night around 11: 00 p.M, I dropped it to 60 degrees on the thermostat and the temp read around 54 degrees.
AD

Tiny
Sfbrown
Aug 9, 2011.
That means it's working fine right now. Your problem is a leak. The question is "what is leaking?" It could still be the compressor but it could be many other things also. Drive it until it starts to warm up again and then they can look for dye stains.

Wrenchtech
Aug 9, 2011.
Thanks. That is what the non-dealer stated. He said the dye will help them pin-point the leak if it is one. But the dealership never mentioned using A/C dye. Now maybe their diagnostic is more accurate than the non-dealer but just thought it stranged all those things needed to be replaced and at such a round number like $1995.00.

Tiny
Sfbrown
Aug 9, 2011.
It can also be leaked checked with an electronic detector that "sniffs" leaking refrigerant but they aren't always conclusive. We have no way of knowing what their reasons were for recommending a compressor.

Wrenchtech
Aug 9, 2011.
Guess my biggest question is if it was the Compressor did the others needed to be replaced in conjuction. The dealer told me the Expansion Valve was in the Dash therefore why the cost was so expensive. I made them itemize the quote and the part was just $65.00. Guess I will find out if the problem occurs sooner or later.

Thanks for the reply.

Tiny
Sfbrown
Aug 9, 2011.

AD