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#1
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temp sensor issue
Ok, I have a question.
there is a temp sensor down by my feet in the heater duct. I think that is what it is. It is a wire coiled up and mounted to the box, and some sealant. Guessing it goes inside the duct. the wires are not plugged in, they are jumped with a wire. What issues will this cause with the heater? how do I test that sensor. thanks
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83 300SD Dark Silver Dark brown inside |
#2
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That sounds like it could be the evaporator temp regulator.
Maybe you could better describe the location of your feet!!! ("Inside my shoes" isn't the answer I am looking for.) |
#3
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how about at the end of my legs?
It is just above and behind the accelerator pedal. I have been looking for a pod that is leaking when I found this.
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83 300SD Dark Silver Dark brown inside |
#4
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That location woud be consistent with the evaporator temp regulator.
http://catalog.peachparts.com/ShopByVehicle.epc?q=1983-Mb-300sd-Climate--Control&yearid=1983%40%401983&makeid=MB%40%40MB%40%40X&modelid=300%2DSD%2D002%40%40300SD&catid=R%40%40Climate+Control&subcatid=R1071@@A%2FC+Evap+Temp+Sensor&mode=PA |
#5
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That looks like it.
Can I test it? what am I looking for? what issue will it cause to leave it jumped out? thanks Doug
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83 300SD Dark Silver Dark brown inside |
#6
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It's basically a temp switch. It should be closed above 36*F and open below that. It cuts power to the a/c compressor to prevent the evaporator from freezing. When the switch fails, it tends to open at a too-high temp, causing a lack of a/c. Some adjustment of the trigger point is possible via an adjustment screw.
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#7
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since IO do not ruin the AC and do not plan to, Should probably leave it unplugged VS. Jumpered?
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83 300SD Dark Silver Dark brown inside |
#8
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Do you use heat? If so, replace it or leave it jumpered.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
#9
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The switch has no function except with regard to a/c operation.
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#10
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Thanks,
We will leave it as it is.
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83 300SD Dark Silver Dark brown inside |
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