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Post by wayne83 on Aug 17, 2014 21:38:23 GMT -5
I had some questions about putting air conditioning on my ranger. I already have everything installed on it as in the compressor evaporator housing condensor lines and accumulator. the only thing I haven't done is wiring. I've looked at gas models in the junkyard but didn't want to tear apart the whole dash to follow 2 wires out from the on off switch on control panel. I did however take the wiring from the compressor to the low pressure sensor then I cut it off at the power distribution block(was off a 88 ranger) I'm assuming one wire from the on off switch on the control panel in the cab is keyed power while the other goes to the low pressure sensor and then from the low pressure sensor to the compressor then the compressor to ground? does that sound correct? the only other thing I'm wondering is is there is a one wire plug that is already in my wiring harness on the passenger side coming out of the blower motor wiring harness, what is that wire used for? on ac trucks in the junkyards it appeared that plug in was used for something but I couldn't follow to where it went after it went into the firewall. so anyone with ac on there trucks have any advice? Thanks
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Post by mazdadieselsroool on Aug 17, 2014 22:20:52 GMT -5
Im thinking it goes to a relay. Turn the fan switch on and it closes a relay that powers up the clutch. There was also a vacuum dash pot that mounted to the pump so it would jack the idle up slightly so the engine wouldnt vibrate too much from having a lower idle under load.
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Post by dieseldawg on Aug 18, 2014 7:31:57 GMT -5
A relay will extend the life of the ignition switch greatly. Also, turning every accessory off before turning off the ignition will prolong the life of the switch.
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Post by wayne83 on Aug 18, 2014 20:39:39 GMT -5
I was actually wondering if when the compressor kicks on if it will almost kill the engine. I traced that single plug wire back into the firewall and to my surprise taped up inside the wiring harness was the ac plug for on off switch!. nice surprise there. so I plugged it into the switch and now there is power at the single wire plug when ac switch is on! so now I just need to know where it goes after that. for the time being I'll just tie it into the low pressure sensor then back to the compressor until I get back to the junkyard to look one over and wire it up properly. and now that the ac will all be installed, time to start looking into a new spot to mount the turbo, this old girl is quite pathetic without it, I can't even imagine how it's going to feel with the ac on haha
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Post by wayne83 on Aug 24, 2014 11:11:16 GMT -5
Air conditioning is all installed and working good! At first i was a little disapointed in it because it was only blowing cool air, so i decided I would I put heater shut off valves in the heater core lines so it could block the heater core in the summer time, and to my surprise it dropped the air temp coming out of the vents by almost 15 degrees. Now the air feels pretty good, almost to that of a newer car. I tried to use the vaccum operated heater valve out of a explorer like people do on the obs and early superduty trucks, but without our climate control being vaccum operated so i had nothing tee off of, i tried using a vacuum actuator solenoid, which worked to close it when i turned the ac on, but the solenoid doesnt relieve pressure between it and the valve when you turn it off, so it would never open back up again until it lost vacuum or pulled the line off. So for now i put manual shut off valves in line until i figure out a way to make something else work. I was trying to run a cable or anything inside to the cab that you have to manual do, i wanted it to be all almost factory seeming. So until i figure something else out i will use the manual ones. Now i just need to figure out where to reinstall the turbo at, maybe i might be able to squeeze it under the reciever/drier, or ill put it where the passenger side battery is, either way ill figure it out and let you all know when i get the turbo back on.
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