msbulldog601

Okay will do and do you recommend changing it out with a new one if clamping the hoses do help? To answer your question correctly, when you say "fan" do you mean the big fan that blows across the radiator & condenser or the ac blower motor in the dash? The large fan is working that mounted in the front of the engine that blows across radiator and condenser. Excuse me for taking you around the world but I wanted to be clear.

I took a clothes hanger and ran it up in the evaporator until it bottom out a few time stuff the stinger back in until it bottom out put everything back together started the truck turn the Ac controls to on still nothing no air flow you can hear like it wants to come on but nothing. The heater control is switched to off I went under the hood and pushed it all the way to the off position.

Hello did you ever post the glove box diagram? I have a 97 Ch 613 and I’m look for fuse diagram mine is missing

Okay I will try it once I get the system back up and blowing. Thanks so much for your help and suggestion.

Okay I will check and let you know what I come up with thanks so much for your help and suggestion.

After I use the clothes hanger to open it up and put the freeze stinger line back in what do I do next how do I get things back to working and thawed out since it frozen up? I would like to say also I tried turning the system on just to see what it would do I still get nothing but I do get a smell in the cab a strong smell maybe from the vents.

I replaced a/c parts on my condenser, air dryer, thermostatic switch in dash, evaporator. I charged the system up it started to blow cold but once I got in the truck to drive it the air started to blow less cool than when sitting at idle. The truck is a 97 Ch 613 Dump Truck(Day Cab). The next day after charging I got up for work turn the ac on still cold when at idle sitting and warmer when driving. Would could cause that? Also while driving the A/C shut off completely on its on so I immediately turn the controls to off until I could pull over. I pulled no over let the hood up turn the controls on I get nothing out the vents not even hot air. Can anyone help me figure this out 1. Why did the air become warmer when driving and 2. Why would it just shut off like it did?

Hello Everyone, I'm putting my ac system back together and I noticed that the bracket that the expansion Valve mounts to is loose I can pull it out the firewall with my hand I see there is two bolt holes on the end that goes into the firewall how can I access the bracket holes while it’s in the firewall to put bolts in the holes? I purchased a new evaporator I don’t want that one to get damaged because it’s moving around to much thanks for your help.

Yes this is the exact replacement... the line to the right runs directly from the secondary air tank to the air drier 2 del port.

For CH 3LBs or 4 12 Ounce Cans of Freon should be good with 9 fl ounces of PAG 100 Oil should be enough for CH daycare/ dump truck?

Hello I just purchased a new air dryer for my CH 613 dump truck because the old one that was on the truck valve was destroyed due to uneven off roads that I work on so I by passed it because it was bleeding air constantly until I could make it to my destination. Now that I have a new one on the truck I turn the truck on and it on pulses for maybe 3 to 4 times then do nothing else the air pressure also does not build up but if I back off the hose (circles in pic) slightly that connects to the control port of the air dryer the air start to build but the air dryer still does nothing but the air tank releases the pressure after it builds up do anyone know what’s going on so I can know what to look for? Do you guys think the check valve in the tank bad?

Also when performing a vacuum I open both sides of the gauge correct?

Rob I put the new expansion Valve on and replaced the receiver drier with a new one. I’m now performing vacuum but the readings I’m getting make me worried please take a look... I purchased manifold gauges and vacuum pump from harbor freight and I put the gauges on turn the pump on I see a mist coming from the pump is that normal?

Should I just replace the receiver drier?

Also is it okay to use the PAG oil with UV Dye?

What #PAG OIL should I use 46 100 or 150?

My A/C has been out for year due to a leak at the expansion Valve it’s just now that I’m fixing the issue since it’s really hot this year. Does the vacuum still matter since the system has been empty and not used?

Okay Hello Guys I did finally get the expansion Valve loose only used line wrenches I have a question before I put it back together the o rings that goes in the expansion Valve is it okay to lubricate with oil it that does not matter? Also sense I don’t have gauges and a big can of R134 can I use the cans you buy from auto zone with the gauges already on the can like AC Pro to charge the system?

Great! You have been a great help one more question then I’m on my way to try what you suggested... Will the air hammer damage the lines with all that hammering? And should I place the air hammer between the nuts and the Valve to try and hit the threads?

Is there some type of grease/lubricant I can put on the connections to help with getting it to loosen up? Thanks for your much needed hemp I truly appreciate it.

My 97 CH613 AC has had a leak at the Expansion Valve for years so I haven't used the AC in years the last time I tried to charge the system it did blow cold until all refrigerant was out of the system. In my area it’s really hot and now I think it’s time for some AC. I’m asking is it any easy fix to just replace the expansion Valve then charge the system. I have a picture of the expansion Valve that sits on the firewall. What can I use to get the expansion Valve loose I know the bolts will be trouble. Thanks for your help.

Hello Everyone, I'm new to the site and I need help location my windshield wiper fuse. I recently replaced my alternator everything seemed to be fine but it started to rain I tried turning on my wipers and they didn't come on. I'm not saying that they are connected but that was the last work done to my truck. I tried locating the fuse in the fuse panel box on the dash to see was it blown first before I take other measures. If anyone could help me out with this I would really appreciate thanks.