Automotive Air Conditioning Information Forum (Archives)
06' honda crv light grind noise from compressor
roonie on 
Thu May 08, 2014 9:54 PM 
Year: 2006
Make: Honda
Model: CRV
Engine Size: 2.4lt
Refrigerant Type: dura cool
Country of Origin: United States
i have an 06' Honda CRV...the air cond. was cold last fall. In the middle of winter a slight grinding sound began with the heater controls set on defrost. As soon as i switch the heater control off of defrost and onto the floor, the slight grinding stops....im guessing because the compressor shuts off. I put my guage on the low side and get a reading of 45. At this time i do not have a way of measuring the high side. When i removed the low side , i realized there was no sign of oil so i took a tool and pressed in the valve and no oil was seen coming out.Does this mean there is no oil in the system?
TRB on Fri May 09, 2014 10:34 AM
One these system should never have Dura Cool installed in them. Second these are the worst compressors ever made. We won't even work on these vehicles in our shop anymore as they will fail again and again do to a poor design.
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roonie on Fri May 09, 2014 1:42 PM
i thought that was just up to 2004 crv's. The class action law suit covers only up to 2004 and when i called Honda America the fellow told me the other years after 2004 were better and to seek out a reputable ac tech. There are a lot of ac shops here in Canada that use Duracool...i know that for a fact.
TRB on Fri May 09, 2014 1:48 PM
OK, but my data shows you have the compressor I would not touch. Have a nice day.
link 2002 Honda CR-V L4 2.4L 2354cc
link 2003 Honda CR-V L4 2.4L 2354cc
link 2004 Honda CR-V L4 2.4L 2354cc
link 2005 Honda CR-V L4 2.4L 2354cc
link 2006 Honda CR-V L4 2.4L 2354cc
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HECAT on Fri May 09, 2014 4:17 PM
Yes the compressor comes on with defrost. You will not always see oil when spritzing the charge port. The scroll compressor starts to grind itself up and then just pops (breaks). when it does it will hammer the condenser and the rest of the system with a huge amount of metal shards. I have seen condenser inlets packed full of metal.
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roonie on Tue May 13, 2014 4:17 PM
so Honda owners are supposed to sweat the rest of the life of the vehicle then? This 2006 crv has been good for air for several yrs since ive owned it so how could the compressors be that bad.
TRB on Wed May 14, 2014 12:32 AM
QuoteOriginally posted by: roonie
so Honda owners are supposed to sweat the rest of the life of the vehicle then? This 2006 crv has been good for air for several yrs since ive owned it so how could the compressors be that bad.
Shoot the messenger if you like. Remember I did not design the compressor. Find someone willing to repair it or as Hecat explained. Get all of the debris out of the system and replace the components that are required to give you the best chance at having a stable system! You might try and see if you can find the Nip internal replacement compressor that were around for a while for these vehicles.
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mk378 on Wed May 14, 2014 10:28 AM
Scroll compressor comes apart you are looking at total system replacement as the only sure bet. Since you're in an experimental mode with this system anyway, mineral oil might be better with HC than PAG. Duracool sells their own brand of oil, made from... they don't say. Snake molecules?
roonie on Mon May 26, 2014 11:19 PM
ok...so ive got a new compressor and condensor. this 2006 crv has a filter that should catch any debris, correct? I watched a couple youtube videos that state that if the compressor has not blown up completely yet (like mine) then i do not have to clean all the hoses etc as the filter will catch any smaller debris. Again..my compressor has not blown up ...just slight grinding noise. Do i still need to clean hoses/system etc. before a recharge.
Dougflas on Tue May 27, 2014 5:57 AM
You should do all you can to insure a clean system. So in answer to your question, yes, I would disassemble and properly flush everything.
HECAT on Tue May 27, 2014 10:32 AM
The filter in a refrigeration system is not there as a debris filter; this is exactly why so many fail again. The filter/dryer in a TXV type system contains a desiccant to remove moisture from the refrigerant, many times the design of these components will allow metal particles to pass.
In the case of the CRV system; fine particles from the scroll chewing itself up will be found through the entire system. Everything needs to be new or cleaned like new before assembly, or this system will fail again. Scroll compressors are the least tolerant of debris over any other compressor design I have seen.
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FLUSHING TECHNICAL PAPER vs2.pdfÃÂ
pippo on Tue May 27, 2014 7:31 PM
QuoteOriginally posted by: mk378
Scroll compressor comes apart you are looking at total system replacement as the only sure bet. Since you're in an experimental mode with this system anyway, mineral oil might be better with HC than PAG. Duracool sells their own brand of oil, made from... they don't say. Snake molecules?
Whatever Duracool sells for oil, I wouldnt buy it since HC's are compatable with any oil (ester, PAG, etc). HC's dont react with oil, so theres no problem. Cant blame them though, for wanting to make some $ on oil- they all do, right? I like making $ too.
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beware of the arrival
pippo on Tue May 27, 2014 7:32 PM
Thats the one big selling point of HC's, no need to worry about oil. All oils work.
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beware of the arrival
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