How do you rig up a temp sending unit? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

724x4a/cchevy · 12-27-2003, 01:33 AM

Im trying to fix my temperature sending unit. Is there any way to rig up a new one and bypass the pressed circuit? I think there may be something wrong with it. I'v e replaced the gauge, thermostat thingy, and the wire leading to it. What am i doing wrong? someone please help me. Is it possible to make a stand-alone temperature gauge.

red71cheyenne · 12-27-2003, 01:44 AM

Is your printed circuit good? There should be a complete path for it thru the board. If you want to bypass the board, just connect the green wire(pull it out of the plug or jumper it) to the post on the back of the guage. This will tell you which part of your ckt is bad. Jeff.

lukecp · 12-27-2003, 01:47 AM

Yes, you can buy an aftermarket guage and use it. Just put the new guage's sending unit in place of the old ones and wire it up according to the instructions that come with the guage. You can get a cheap guage for like $15

red71cheyenne · 12-27-2003, 02:13 AM

Sorry, rtfq, right? Guess I should have answered the whole thing. Thanks for the help yellow72. Jeff.

724x4a/cchevy · 12-28-2003, 03:51 PM

Its a tach dash, so i cant just go get one from the parts truck. I have like three spare dashes but no more tach circuits. Some of those copper tabs are loose where the main plug-in goes, thats why im wondering.

*rage'nrat638* · 12-28-2003, 04:10 PM

FYI......
the sending unit get's installed with no tape or any thing...
so it will ground out on the engine block

tom hand · 12-28-2003, 04:22 PM

Many part's store sending units are no good right out of the box....all you have to do is ground the wire that goes to the sending unit...if it pegs the guage the sending unit is no good

12-27-2003, 01:33 AM	#1
724x4a/cchevy Self-proclaimed LED man Join Date: Nov 2003 Location: Harrisburg, Missouri Posts: 1,021	How do you rig up a temp sending unit? Im trying to fix my temperature sending unit. Is there any way to rig up a new one and bypass the pressed circuit? I think there may be something wrong with it. I'v e replaced the gauge, thermostat thingy, and the wire leading to it. What am i doing wrong? someone please help me. Is it possible to make a stand-alone temperature gauge. __________________ My LED Website My Photobucket Album of LED's Ask me about hand-made custom L.E.D brake and reverse lights. <- LINK I also do LED: -Third Brake/Cargo -Brake (truck and burb) -Reverse (truck and burb) -67-68 Front Turn Signals -69-70 Front Turn Signals -71-72 Front Turn Signals -GMC Front Turn Signals I can also do custom lights for other vehicles....i did a set for a AMC Gremlin once Norwood Survivor

12-27-2003, 01:44 AM	#2
red71cheyenne Back in the sticks Join Date: Jan 2001 Location: Fordland, MO Posts: 3,188	Is your printed circuit good? There should be a complete path for it thru the board. If you want to bypass the board, just connect the green wire(pull it out of the plug or jumper it) to the post on the back of the guage. This will tell you which part of your ckt is bad. Jeff. __________________ 1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty

12-27-2003, 01:47 AM	#3
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Yes, you can buy an aftermarket guage and use it. Just put the new guage's sending unit in place of the old ones and wire it up according to the instructions that come with the guage. You can get a cheap guage for like $15 __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

12-27-2003, 02:13 AM	#4
red71cheyenne Back in the sticks Join Date: Jan 2001 Location: Fordland, MO Posts: 3,188	Sorry, rtfq, right? Guess I should have answered the whole thing. Thanks for the help yellow72. Jeff. __________________ 1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty

12-28-2003, 03:51 PM	#5
724x4a/cchevy Self-proclaimed LED man Join Date: Nov 2003 Location: Harrisburg, Missouri Posts: 1,021	Its a tach dash, so i cant just go get one from the parts truck. I have like three spare dashes but no more tach circuits. Some of those copper tabs are loose where the main plug-in goes, thats why im wondering. __________________ My LED Website My Photobucket Album of LED's Ask me about hand-made custom L.E.D brake and reverse lights. <- LINK I also do LED: -Third Brake/Cargo -Brake (truck and burb) -Reverse (truck and burb) -67-68 Front Turn Signals -69-70 Front Turn Signals -71-72 Front Turn Signals -GMC Front Turn Signals I can also do custom lights for other vehicles....i did a set for a AMC Gremlin once Norwood Survivor

12-28-2003, 04:10 PM	#6
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	FYI...... the sending unit get's installed with no tape or any thing... so it will ground out on the engine block

12-28-2003, 04:22 PM	#7
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	Many part's store sending units are no good right out of the box....all you have to do is ground the wire that goes to the sending unit...if it pegs the guage the sending unit is no good __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS



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