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problems with towing trailer

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Old Sep 13, 2013 | 04:46 PM
  #1  
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problems with towing trailer

I have a 1999 ford f350 dually that is used for mainly towing a fifth wheel trailer. When the air conditioning is turned on the compressor seems to kick on and off every few seconds. Thinking it was the fan clutch, I had a new one installed but the problem still remains. When not towing the air conditioner works fine. Have taken it to several ford dealers and the ac checks out fine. When towing if i shift into od the problem goes away. It seems that it happens when the engine is under a load that it happens. Any thoughts would be appreciated.
 
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Old Sep 13, 2013 | 05:14 PM
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Don't know how the load would affect it, but is the air gap correct?
 
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Old Sep 13, 2013 | 06:32 PM
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air gap has been checked by several dealers
 
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Old Sep 13, 2013 | 09:14 PM
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Is there a lot of debris between the radiator and coolers? It could cause it to not cool as efficiently and cause your issues.
 
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Old Sep 13, 2013 | 09:15 PM
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It's worth checking the connector, I've seen them wear out and make intermittent connection.
 
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Old Sep 13, 2013 | 10:20 PM
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High pressure switch the connector gets loose 28 bucks at rockauto an just splice it in
 
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Old Sep 16, 2013 | 10:45 AM
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Originally Posted by mduvalsr
I have a 1999 ford f350 dually that is used for mainly towing a fifth wheel trailer. When the air conditioning is turned on the compressor seems to kick on and off every few seconds. Thinking it was the fan clutch, I had a new one installed but the problem still remains. When not towing the air conditioner works fine. Have taken it to several ford dealers and the ac checks out fine. When towing if i shift into od the problem goes away. It seems that it happens when the engine is under a load that it happens. Any thoughts would be appreciated.
Mine does the exact same thing, I'm curious if the high pressure switch fixes it.
 
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