Coolant temp sender |
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ssregal39
New Member Joined: 04-August-2013 Location: Norfolk VA Status: Offline Points: 27 |
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Posted: 21-August-2016 at 10:14AM |
I just got done with a 302 to 351W swap on my 78 bird.
I'm using a 2 pin temp sender that was in the 302 and the original half round connector. After break in I've found the gauge not working and I'm pretty sure it's the sender. It's open to both pins when I check the resistance on it. The thing is I can't find a two pin temp sender anywhere (napa online etc). I have two single pin senders on other motors and my parts car. I suppose I could adapt the single pin but, I'm just confused as to what this two pin sender is. Any thoughts out there in Ford land?? Is this a one off bastardized part?
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californiajohnny
Moderator Group Joined: 05-October-2013 Location: winlock, wa Status: Offline Points: 14609 |
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i've seen those senders like you describe on the later vehicles, not sure what the second wire is? possibly an independent ground??? the single wire senders are grounded through the threads and the wire is the negative side of the gauge.
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JOHN
74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
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Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
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My 79 has the same connector. Thought maybe 1 pin is for gauge, 1 is for idiot light, but I might be mistaken.
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"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
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ssregal39
New Member Joined: 04-August-2013 Location: Norfolk VA Status: Offline Points: 27 |
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I don't know either. I have a complete set of1978 ford FSMs and they don't show it like it is on the car.I'll try some more research.thanks for the info so far. 😊
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ssregal39
New Member Joined: 04-August-2013 Location: Norfolk VA Status: Offline Points: 27 |
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Well, I wasn't able to find a two pin switch anywhere. So, I stuck the single pin in it. I had to connect the sensor wire to the harness red wire and the yellow harness wire to ground and the gauge works fine.
S, I guess the other pin on the sensor was for ground. Odd.
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