Replacing whole A/C system - Dodge Cummins Diesel Forum
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post #1 of 3 (permalink) Old 07-18-2019, 10:00 PM Thread Starter
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Replacing whole A/C system

Just a few days ago, my a/c compressor locked up on my way home out of no where, luckily I had noticed it and stopped before I ripped a serpentine belt. But I cannot spin my compressor by hand now, not sure if it sent metal shavings through the system, but i'm assuming it did. What all should/ do I need to replace? Would I be safe going with one of the a/c kits on amazon thats about $310 for compressor, condensor, accumulator, orifice line.

What are your opinions/ recommendations?

2008 Ram 2500 4x4 qcsb 6.7l 277k miles


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post #2 of 3 (permalink) Old 07-21-2019, 10:40 PM
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The short answer is yes, replace everything. Compressor, high-side line with orifice tube (goes behind the passenger side battery), accumulator/dryer, evaporator, and preferably a new condenser. I promise you that there are metal shavings throughout the system which will collect in the orifice tube and cause the system to fail again in the future. Your best long term solution (and cheapest in the long run) is to change it all at once. It is impossible to properly flush a modern condenser or evaporator to remove all the debris. While you're in the HVAC box to change the evaporator, it's a good idea to put in a new heater core and new blend doors. I personally prefer to use GPD components, but UAC is also a good brand to look into. If possible, try to acquire a new OEM compressor, not a reman.

John
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post #3 of 3 (permalink) Old 07-22-2019, 11:41 PM
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Hi mine didn't lockup but i wanted to change it before it did lockup. I changed the evap core and heater core and blend doors to fix a blend door problem last year. Today i did the compressor and the orifice tube line and the dryer not really a fun job. Someone was just asking about orifice tube part number and this is what i wrote to him. Hope yours goes better than mine did today!!!


Not sure if 2006 is the same as 2003 for that line, if it is that line is 2 parts it has a connection/splits is behind the battery box. That line comes off the evap its a full aluminum line no rubber then joins to the other line behind the battery box its aluminum to the front where it has about 6 inches of rubber then connects to the condenser. Battery and battery box has to come out to get at the connection if its like mine that i changed today. I also did the dryer and compressor before it lets me down in the middle of no where, i think its 15 years old the factory one. With one seized top bolt in the compressor it was take the wheel well out and cut right through the old compressor where the bolt was seized to be able to drop the compressor then get the bolt out of the mounting bracket. Glad i did this because trying to get the compressor off on the side of the road would not be fun and then finding the seized bolt their would be some not so nice words coming out of my mouth!!!

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