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    Thread: Temp Gauge Sender Location

    1. Member vwbugstuff's Avatar
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      10-06-2012 05:55 PM #1
      '92 Jetta GL 1.8

      I'm working on the boy's car - where is the temp sender/sensor for the coolant temp gauge on the dash? And, what colors are the wires that go to the plug for the aforementioned sender?

      Pictures would be extremely helpful.

      Thanks in advance!!!
      Last edited by vwbugstuff; 10-07-2012 at 01:00 AM.

    2. Member adam the caveman's Avatar
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      10-06-2012 06:40 PM #2
      for the coolant temp gauge?
      its on the coolant flange coming off of the front side of the cylinder head. right in the middle.
      i haven't messed with a digifant in a while so i forget which one.
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    3. Member Seax_Smith's Avatar
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      10-06-2012 08:37 PM #3
      Dead center front of engine. The flagne is the other end of the upper radiator hose. There will be 2 sensors on top. Blue one should be toward the head and is the CTS for the digi II. The black one on the outside, is for the water temp gauge.

      Funny thing both are heat activated resistance switches with different curves. The more expensive CTS goes bad regularly, and the less expensive temp gauge send almost never goes bad.
      I'm currently out of my mind, but feel free to leave a message.

    4. Member vwbugstuff's Avatar
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      10-07-2012 12:59 AM #4
      Thanks for the replies guys!

      Here's another then: on the right side of the block (driver's side) there is a flange for one of the heater hoses. There is a white, 2-prong sensor in that flange as well. What is that one for? It's not plugged in and there is no plug floating around that could plug into it. But there is a dangling wire, which is long enough to reach it, grounded to one of the valve cover bolts.

      And, just ranting out loud, who's brilliant idea was it to put the thermostat where it is? What a total pain in the a$$......

      What is the cooling system capacity so that I know how many litres of G11 to buy???
      Last edited by vwbugstuff; 10-07-2012 at 02:06 AM.

    5. Member Seax_Smith's Avatar
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      10-07-2012 10:13 AM #5
      Digi II does not have a sensor in the side head coolant flange. White 2 pin sounds like a CE1 Digi II CTS which would match up with the early type, aluminum, front flange. Possibly it is an add-on for an actual water temp gauge.

      Wires grounded to the head in that area: The coil bracket should have a ground strap or 12 gauge connection it to the head. There is Also the after run switch that will have a brown wire sheathed in black. This turns on the fans when the bay temp reaches outragiously high temps. It is usually removed because it is mostly useless and gets in the way.

      Grounding the low pressure oil sender wire happens sometimes too.
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    6. Member vwbugstuff's Avatar
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      10-07-2012 02:57 PM #6
      I'll post some pics tomorrow.

      Any ideas on the cooling system capacity?

    7. Member Seax_Smith's Avatar
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      10-07-2012 09:17 PM #7
      about 2 gallons
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