Alie&Jim's Carrilite Posted April 7, 2015 Report Share Posted April 7, 2015 A 1998 Volvo with a Cummins engine would use R134 AC refrigerant shouldn't it? I need to do a vacuum and recharge the system with a little bit of dye so I can find the leaks. If the leak is in the lines for the rear AC, how hard is it to cap them? What are the other common leaks in these systems? Thanks guys and gals! Alie & Jim + 8 paws 2017 DRV Memphis BART- 1998 Volvo 610 Lil'ole 6cyl Cummins Link to comment Share on other sites More sharing options...
fsujeeper Posted April 7, 2015 Report Share Posted April 7, 2015 Anywhere there is a mechanical joint is a good place for a leak. this includes o ring connections and compression type connections. lines themselves rarely get holes in them, but when they do usually leak all the refrigerant out. Be on the lookout for oil on the joints and on the a/c lines. This is typically an area of a leak since the oil mixes with the refrigerant while traveling in the system. if you're Baltimore, MD i'd look at it for you. Link to comment Share on other sites More sharing options...
wtgeodog Posted April 10, 2015 Report Share Posted April 10, 2015 My first guess on the freon leak would be the compressor drive shaft. Dye will not show this leak. ShortyO Link to comment Share on other sites More sharing options...
Alie&Jim's Carrilite Posted April 11, 2015 Author Report Share Posted April 11, 2015 Little more info- After putting a set of gauges on, and tracing some wires, I found that the clutch is probably going bad. It works when it wants, when it engages the compressor produces cold AC. But the clutch doesn't always engage when it should. You can here the "Click" but no movement. For $100, I'll buy a new compressor and clutch assembly, then have the system evacuated, drier replaced, compressor replaced and recharged. Should be an easy fix. Alie & Jim + 8 paws 2017 DRV Memphis BART- 1998 Volvo 610 Lil'ole 6cyl Cummins Link to comment Share on other sites More sharing options...
CrazyCooter Posted April 11, 2015 Report Share Posted April 11, 2015 Check the air gap on the clutch. May just be a little large causing erratic engagement especially as it heats up. 1999 Peterbilt 385 C12 430/1650 13spd 2006 Dodge 3500 DRW 4x4 2010 Hitchhiker Champagne 36 LKRSB Link to comment Share on other sites More sharing options...
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