Question about 2000 Ford F250 Super Duty Crew Cabs

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A/c inop when not under a load

I have a 99 f-250 with 7.3 diesel. The a/c stops blowing cold when the engine is not under a load. as soon as you put it under a load again the a/c works great..??? Any ideas?

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Does it have a mechanical fan on water pump? do you work construction or dirty places. it could have a huge build up of dirt between rad and condensor. take off grill and use power washer to spra fins on condenser.

Posted on May 27, 2009

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Posted on Jan 02, 2017

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