A/C was working fine. Made a stop, 2hrs later, start the truck, no A/C. Fan works, all speeds. Heater works, directionals work, but just blows ambiant air. Had a guy diagnos the problem. 2 1/2 days later, he tells me he tracked the problem to the fuse block. Told me the part was very expensive ($2,000+) & I have to have the dealer reprogram my computor. Does anyone know of this? Is this a common problem? Does the fuse block go by a different name? Can it be straight wired? Can I buy the part cheaper online, or in the junk yard? Just doing my home work. Thank you to anyone that can help.
07, 5.9 cummings turbo, crew cab, 4 by 4
COOTER

 

could be anything, clutch relay, compressor, low pressure cutoff switch, high pressure cutoff switch, etc.
what did your pressures look like static and dynamic?

 

With that answer, I can tell you did not really read my post. The problem has been tracked to the fuse block. Looking for answers about the fuse block.

 

is it a reputable shop and which part of the fuse block is bad?

 

Yes sir, I believe this guy runs a reputable shop. He has dodge deisels at is shop all the time. He told me that it was the fuse for the a/c in the fuse block & you have too buy the whole fuse block. You just cant change the a/c fuse in the block. He also told me that the dealer would have to program the fuse block with the computor in my truck. I dont know how true any of this is. I am extreamly novice too electrical aspects of automotive, but I am willing too learn. I just need a good teacher.

 

well all so called fuses are replaceable unless there are solders/defects in the circuit board under the fuses in the pdc(power distribution center)/fuse block.
which is what your saying he diagnosed.

 

I just had the same problem, my compressor was blown cost $1,650 warranty paid everything minus $100 and sales tax. Nice to have a/c again, 103° in Las Vegas today.