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Hey folks! Any idea which wires to place the resistor leads on in a 3-wire configuration??
This is on a 2006 Navigator by the way. I've replaced my compressor, condenser, accumulator, both evaporators, both expansion valves, flushed the lines, re-filled with the exact amount of PAG oil and refrigerant, replaced all blend door actuators, replaced the blower motor resistor and temperature sensor, replaced the heater valve... but the A/C will never give an outlet temp under 48 degrees. Unfortunately I didn't hear about this mod until I invested a whole lot of money and time on trying to get the system to perform better, and I've now replaced literally every single component of my A/C system as of last year.
I can't install a resistor on the 2-wire temp sensor-side of the wiring because there's no room in the connector for it. The connector picture has room to install the resistor with d-sub pins, but there are 3 wires on that connector and I've been unable to determine which 2 wires of those 3 are the ones I need to run the resistor across. I've watched the compressor cycle off quite a bit with the proper R134A fill (I used the ForScan app to display live data while driving the truck around), so I'm really hoping that as it warms up this year I can remedy this problem. Sitting in traffic on a 85 degree day usually results in 62 degree and warmer outlet temperatures, and that just doesn't cut it. Thanks everyone!
-Andrew
Cant help you with wiring, but can tell you we had an 04 EB Expedition that had a TSB issued to install another temp probe. Cant remember the exact issue this fixed, maybe too much cycling.
Howdy folks, I have read the majority of the posts on this thread and would like to thank everyone for the wealth of information provided. I was hoping someone might have some insight to the problem in my 2014 F150. Last summer I had the compressor cycling, installed a resistor and had good results but it did freeze up the evaporator once so I removed the resistor for the winter. This year I have attempted several different resistors with no success. With <500K I get little or no change, with >500K the compressor will not engage at all. Low and high side pressures are within normal ranges and it's not low on R-134a. Could I have a pressure switch or TXV problem?
Any ideas or suggestions would be greatly appreciated.
Howdy folks, I have read the majority of the posts on this thread and would like to thank everyone for the wealth of information provided. I was hoping someone might have some insight to the problem in my 2014 F150. Last summer I had the compressor cycling, installed a resistor and had good results but it did freeze up the evaporator once so I removed the resistor for the winter. This year I have attempted several different resistors with no success. With <500K I get little or no change, with >500K the compressor will not engage at all. Low and high side pressures are within normal ranges and it's not low on R-134a. Could I have a pressure switch or TXV problem?
Any ideas or suggestions would be greatly appreciated.
get yourself a variable 1M potentiometer and wire that in. Then, adjust accordingly while reading output temps in a center vent with the other 3 closed. You don't want colder than 40deg Fahrenheit.
Is there a particular post in this thread to reference on exactly where ghee plug is to plug in the pot and how to hook it up? I'm about to order a 1m pit but don't know where it hooks up.
trying to read through but mobile page keeps having errors
Is there a particular post in this thread to reference on exactly where ghee plug is to plug in the pot and how to hook it up? I'm about to order a 1m pit but don't know where it hooks up.
trying to read through but mobile page keeps having errors
Don't use the mobile version, either use a pc or make your mobile request the desktop version in settings.
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Is there a particular post in this thread to reference on exactly where ghee plug is to plug in the pot and how to hook it up? I'm about to order a 1m pit but don't know where it hooks up.
trying to read through but mobile page keeps having errors
I think I found roughly what I'm looking for, just trying to figure out how to wire the pot because it has 3 wire outputs ands there are only 2 wires.
If yours is like mine, Center post is common. the POT will "turn up" the resistance on one outer post and "turn down" the resistance on the other. at least that is what mine did. get your Multimeter on it and check though.
edit to clarify. if the pot has been turned all the way to the left, one side will show max resistance, and other will show minimum. turn it to the right and it will adjust them inversely until it is exactly opposite.
If yours is like mine, Center post is common. the POT will "turn up" the resistance on one outer post and "turn down" the resistance on the other. at least that is what mine did. get your Multimeter on it and check though.
edit to clarify. if the pot has been turned all the way to the left, one side will show max resistance, and other will show minimum. turn it to the right and it will adjust them inversely until it is exactly opposite.
Correct, use center post with either of the other 2.
I skimmed through the thread a bit, can I put the pot in and adjust to desired result and leave it or do i need a switch in there. Seeing mixed info plus use of resistors etc. Trying to figure out what's best for me
04-19-2018, 09:28 PM
