Rear A/C Bypass
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Registered User
Joined: Aug 2011
Posts: 24
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From: Illinois
Rear A/C Bypass
Last fall I took my D into the local shop to get the A/C fixed. Got an estimate of $1,500 
The shop said parts were not going to be much - mostly labor costs since the issue was with the Rear A/C and was difficult to get at so it drives up cost.
Needless to say - that didn't happen.
However, with this years summer temps spilling into the 100's, I am thinking I need to fix it. I know I have a line leak passenger side, where the lines go over the frame and possibly just under the exhaust heat shield. Which means a lot of cr*p has to come out of the way. If I did this route, I would be replacing the exhaust system as well simply because its a target of opportunity.
But a thought occurred to me. What the heck. Why not just replace the liquid / Suction lines from expansion valve forward using front only A/C lines. The low pressure sensor (on rear line) would not be an issue since it would be connected to the new line. Even if I also replaced the drier, what, talking maybe a one or 2 hour job with say 150 in parts? Am I wrong?
Refrigerant lines seem hard to locate though. Rockauto doesn't carry. Orielly's, Auto zone neither... Any suggestions on this approach and a line source?
Thx
The shop said parts were not going to be much - mostly labor costs since the issue was with the Rear A/C and was difficult to get at so it drives up cost.Needless to say - that didn't happen.
However, with this years summer temps spilling into the 100's, I am thinking I need to fix it. I know I have a line leak passenger side, where the lines go over the frame and possibly just under the exhaust heat shield. Which means a lot of cr*p has to come out of the way. If I did this route, I would be replacing the exhaust system as well simply because its a target of opportunity.
But a thought occurred to me. What the heck. Why not just replace the liquid / Suction lines from expansion valve forward using front only A/C lines. The low pressure sensor (on rear line) would not be an issue since it would be connected to the new line. Even if I also replaced the drier, what, talking maybe a one or 2 hour job with say 150 in parts? Am I wrong?
Refrigerant lines seem hard to locate though. Rockauto doesn't carry. Orielly's, Auto zone neither... Any suggestions on this approach and a line source?
Thx
Last fall I took my D into the local shop to get the A/C fixed. Got an estimate of $1,500 The shop said parts were not going to be much - mostly labor costs since the issue was with the Rear A/C and was difficult to get at so it drives up cost.
Needless to say - that didn't happen.
However, with this years summer temps spilling into the 100's, I am thinking I need to fix it. I know I have a line leak passenger side, where the lines go over the frame and possibly just under the exhaust heat shield. Which means a lot of cr*p has to come out of the way. If I did this route, I would be replacing the exhaust system as well simply because its a target of opportunity.
But a thought occurred to me. What the heck. Why not just replace the liquid / Suction lines from expansion valve forward using front only A/C lines. The low pressure sensor (on rear line) would not be an issue since it would be connected to the new line. Even if I also replaced the drier, what, talking maybe a one or 2 hour job with say 150 in parts? Am I wrong?
Refrigerant lines seem hard to locate though. Rockauto doesn't carry. Orielly's, Auto zone neither... Any suggestions on this approach and a line source?
Thx
The shop said parts were not going to be much - mostly labor costs since the issue was with the Rear A/C and was difficult to get at so it drives up cost.Needless to say - that didn't happen.
However, with this years summer temps spilling into the 100's, I am thinking I need to fix it. I know I have a line leak passenger side, where the lines go over the frame and possibly just under the exhaust heat shield. Which means a lot of cr*p has to come out of the way. If I did this route, I would be replacing the exhaust system as well simply because its a target of opportunity.
But a thought occurred to me. What the heck. Why not just replace the liquid / Suction lines from expansion valve forward using front only A/C lines. The low pressure sensor (on rear line) would not be an issue since it would be connected to the new line. Even if I also replaced the drier, what, talking maybe a one or 2 hour job with say 150 in parts? Am I wrong?
Refrigerant lines seem hard to locate though. Rockauto doesn't carry. Orielly's, Auto zone neither... Any suggestions on this approach and a line source?
Thx
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Joined: Sep 2010
Posts: 396
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From: Buffalo, NY
Not sure which lines you're replacing, but if any of them connect directly to the compressor I don't think it'll work. My understanding is the compressor from a single air vs. dual air has different diameter lines coming from it. I don't know what else would be different....
Bob
Bob
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Joined: Aug 2011
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From: Illinois
Not sure which lines you're replacing, but if any of them connect directly to the compressor I don't think it'll work. My understanding is the compressor from a single air vs. dual air has different diameter lines coming from it. I don't know what else would be different....
Bob
Bob
Problem is I take a trip this weekend with SWMBO. And a non-working A/C is not an option. Time is killing me and if the front a/c lines are different - that's a no go.
It never ceases to amaze me, how many time I come across stupid implementations that make no sense. If I ever found a genie in a lamp, rest assured, my first wish would be that engineers would first have to serve time as a mechanic!
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