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tube and fin versus serpetine condensers

jgcox6 on Fri March 27, 2009 8:30 AM User is offline

Year: 93
Make: Ford
Model: F-150
Engine Size: 4.9l
Refrigerant Type: 134 convert
Country of Origin: United States

Hey guys..just wanting to ask a question concerning tube and fin condensers versus serpentine condensers. Is the serpentine more efficient? Does it provide cooling more efficiently over the tube and fin condenser? I ordered and installed the wrong kind of condenser on my 93 Ford-150. I know now it used to be a tube and fin but now have a serpentine. I thought I had read that the serpentine was more efficient,,,if so I must have a air flow problem, especially when I am sitting at a stop light. Just wanting to figure out if and how bad a mistake I made getting the serpentine.

GM Tech on Fri March 27, 2009 10:33 AM User is offline

I prefer the serpentines- especially with 134a....

The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

TRB on Fri March 27, 2009 11:00 AM User is offlineView users profile

Order of performance in my opinion.

Older T & F
Newer 6mm T & F - Parallel Plow aka Piccolo
Flat Tubed & Veined Parallel Flow


When considering your next auto A/C purchase, please consider the site that supports you:

iceman2555 on Fri March 27, 2009 1:38 PM User is offlineView users profile

This unit should not inhibit air flow at idle or during any other conditions. It actually has more cooling efficiency over the tube/fin units. The fins count is greater and are normally multi-louvered (greater heat transfer) plus the internal flow paths enhance refrigerant cooling. Personal will work better.....the key to this repair is to insure that the system is properly recharged....and the other engine/condenser cooling components are working as they should.

The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson

jgcox6 on Sun March 29, 2009 9:25 AM User is offline

Thanks for your replies. I have couple quick questions.... what color orifice tube should be in my system? I think I might have gotten the wrong color at the "zone". I also would like to know if the "feel the inlet outlet" hoses on the evaporator are the best way to tell if system is charged properly? Is it when they are equal in feel? One more question....How do you test the fan clutch to know if it is good?

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