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Old 02-28-2021, 06:16 AM   #1
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A/c chassis lines

Are chassis a/c lines changeable on a 2002 dutch star diesel pusher ,from front to rear
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Old 02-28-2021, 07:41 AM   #2
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Sure...but costly. Are you wanting a shop to do it? or DIY? Coldhose.com is maybe a source for lines.
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Old 03-01-2021, 03:47 AM   #3
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If your still in Ft Myers go talk to JJ at Modern Auto Air (239) 433-3757. They work on RVs. If you truly do have to replace the lines he can tell you how others have done it.

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Old 03-01-2021, 05:11 AM   #4
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I would do it myself, I'm thinking I will have to pull the ceiling in the basement down, just don't know
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Old 03-01-2021, 08:01 AM   #5
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Quote:
Originally Posted by mhsetter View Post
I would do it myself, I'm thinking I will have to pull the ceiling in the basement down, just don't know
The lines will be exposed along the frame rails. Start at the compressor and follow them forward.
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Old 03-01-2021, 04:07 PM   #6
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Spartan or Freightliner chassis ?
Cummins or Cat engine?

My Freightliner chassis; W/Cat, the A/C lines are enclosed in a plastic box in side the passenger side frame rail , the heater hoses run through another box down the drivers side . The box has zip ties every 2/3' and the lid snaps off once the zip ties are cut.
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Old 03-02-2021, 10:11 AM   #7
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Quote:
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Spartan or Freightliner chassis ?
Cummins or Cat engine?

My Freightliner chassis; W/Cat, the A/C lines are enclosed in a plastic box in side the passenger side frame rail , the heater hoses run through another box down the drivers side . The box has zip ties every 2/3' and the lid snaps off once the zip ties are cut.
Wow...they don't make them like they used to I guess. Hoses inside a plastic box.....awesome. Nevermore.
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Old 03-02-2021, 02:22 PM   #8
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I have a spartan chassis, didn't know if they were tied up or just fished though,thought about cutting ends off, hooking togather, pull the old out and the new one in at the same time ,then splice ends,
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Old 03-02-2021, 06:55 PM   #9
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Freightliner , ran the A/C pressure/suction lines the length of the frame , and Newmar attached the Evans/Tempcon dash section and charged the assembly .

Newmar didn't fish the lines through , but I can't say if F/L or Spartan would have zip tied the lines to anything along the frame .
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Old 03-19-2021, 12:41 PM   #10
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Flush lines?

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I have a spartan chassis, didn't know if they were tied up or just fished though,thought about cutting ends off, hooking togather, pull the old out and the new one in at the same time ,then splice ends,
I have a potentially seized compressor on a Monaco that scares me about the lines and contaminants. Do you have a similar situation going on? I had fixed a r134a system on a pickup, and replaced the much shorter lines and didnt have contaminant issues that I am aware of, and that system had been down for years. Im hoping for an easy fix of replacing the compressor, evac and recharge.
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Old 03-19-2021, 01:03 PM   #11
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Quote:
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I have a potentially seized compressor on a Monaco that scares me about the lines and contaminants. Do you have a similar situation going on? I had fixed a r134a system on a pickup, and replaced the much shorter lines and didnt have contaminant issues that I am aware of, and that system had been down for years. Im hoping for an easy fix of replacing the compressor, evac and recharge.
HVAC stuff is something I'm not very knowledgeable about.... but...

Are your lines damaged, or just possibly contaminated....?

Can auto A/C lines be purged like home copper lines...?

I just replaced my home A/C unit... The old one wasn't damaged, just 25 yrs old and inefficient...

I watched the install trying to learn about this stuff...

Before hooking the new compressor to the old lines, they purged the lines with some kind of fluid several times, clearing the lines after each purge with bursts of compressed air..... I forget how he said he knew it was purged sufficiently, but the first couple really blew some junk out of the old lines...

He then connected the old lines to the new coil & compressor... charged and tested the system... All OK...!

Don't know if that's possible with auto A/C lines, but worth looking into...
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Old 03-20-2021, 09:27 AM   #12
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Same method on the coach a/c lines too hattie. I used a gallon of flushing fluid with a flush kit and dry compressed air before installing the new condenser and compressor. Note:most new parallel flow condensers can't be flushed due to passages being too small.
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