ArdWrknTrk Posted April 15, 2020 Share Posted April 15, 2020 I'm not too well versed in 300... Neither am I, but I just happened to look at a 1983 with a 300 at the junkyard a few months ago, an both manifolds were missing so I had clear view of the temp sender. Otherwise I wouldn't have known. In any case, I'm anxious to hear the next chapter in this story now that the OP knows where to check. I imagine that sender is quite well hidden from normal view with a completely intact engine. Look where the bold arrow is pointing in that illustration from the parts catalog. Taking bets that the sender isn't even plugged in? Broken wire counts. Link to comment Share on other sites More sharing options...
nilknarf007 Posted April 15, 2020 Author Share Posted April 15, 2020 Look where the bold arrow is pointing in that illustration from the parts catalog. Taking bets that the sender isn't even plugged in? Broken wire counts. You guys are awesome! Pictures are worth a thousand words. I found the sending unit, and sure enough, no wire was attached to it. I rooted around the bell housing and discovered an unattached wire with the appropriate "plug" on the end. I grounded that wire, turned on the key, and I have a temperature gauge that works! I've got some stuff apart on the engine right now, so I can't test the sending unit, but I will by the end of the day. Once again, thanks very much. Link to comment Share on other sites More sharing options...
Gary Lewis Posted April 15, 2020 Share Posted April 15, 2020 You guys are awesome! Pictures are worth a thousand words. I found the sending unit, and sure enough, no wire was attached to it. I rooted around the bell housing and discovered an unattached wire with the appropriate "plug" on the end. I grounded that wire, turned on the key, and I have a temperature gauge that works! I've got some stuff apart on the engine right now, so I can't test the sending unit, but I will by the end of the day. Once again, thanks very much. Congrat's! Well done. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted April 15, 2020 Share Posted April 15, 2020 You guys are awesome! Pictures are worth a thousand words. I found the sending unit, and sure enough, no wire was attached to it. I rooted around the bell housing and discovered an unattached wire with the appropriate "plug" on the end. I grounded that wire, turned on the key, and I have a temperature gauge that works! I've got some stuff apart on the engine right now, so I can't test the sending unit, but I will by the end of the day. Once again, thanks very much. Great that it was an easy, no $ fix, Rob! Hope the rest of your engine work goes as smoothly this afternoon. That 300 is about a perfect engine for a 150 work truck. Link to comment Share on other sites More sharing options...
grumpin Posted April 15, 2020 Share Posted April 15, 2020 Great that it was an easy, no $ fix, Rob! Hope the rest of your engine work goes as smoothly this afternoon. That 300 is about a perfect engine for a 150 work truck. Link to comment Share on other sites More sharing options...
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