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Author Topic: Temp Senders  (Read 2100 times)

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Offline Jeffy

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Temp Senders
« on: August 15, 2005, 08:37:11 PM »
Ok Swink, here's the color for the sender on the front of the engine.  18VT  That's 18 gauge/ violet, which happens to be the same color as what goes to the gauge.  

Looks like the rear temp sender is a 2 wire.  18BR/RD and a 18TN to the sensor.

The thing on the front of the intake on the 4.3L is a temp sender of some sort but I'm not sure if it's the gauge or PCM, or both. GM's FSM sucks.
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ratherbejeeping

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Temp Senders
« Reply #1 on: August 15, 2005, 08:42:42 PM »
http://pg.photos.yahoo.com/ph/ratherbejeeping/detail?.dir=6f87&.dnm=7aa5.jpg&.src=ph

This looks to be my guage sending unit.  Single wire, and I can match the color to the plug where I got the oil pressure guage to work.

Now I just have to figure out a way to connect the thing.  It's either pipe thread or some metric stuff.  But I think I'll drill and tap the plug that's under the t-stat on the Vortec to make it fit.  Or if I'm real lucky I can just buy an adapter.

3rd one down in this pic

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Offline Jeffy

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Temp Senders
« Reply #2 on: August 15, 2005, 08:59:44 PM »
The one on the thermostat housing on the 2.5L looks like #3 and the one at the back of the engine looks like #2.
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"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

ratherbejeeping

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Temp Senders
« Reply #3 on: August 15, 2005, 09:27:40 PM »
that's what I meant.  I have one like #3 and it threads right in to the plug on the motor.  I have to figure out how to get #2 to thread in there instead.
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Offline Jeffy

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Temp Senders
« Reply #4 on: August 15, 2005, 09:45:03 PM »
JB Weld...
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"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

JBFried67

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Temp Senders
« Reply #5 on: August 16, 2005, 08:05:52 AM »
I did the infamous XJ guage swap and ended up ordering the temp sender.  I got one like #2, although the existing was like #3.  I just went to the junkyard and pulled the connector from another Jeep that uses #2, spliced it in place of the old wires.
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ratherbejeeping

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Temp Senders
« Reply #6 on: August 16, 2005, 09:47:35 AM »
Got a clue that this could all be NPT, and Mr. Kilby seems to think that a 1/4 to 3/8 adapter will do the trick.  

I'll pick one up and see
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