Wiring for oil temp?, Where does the wire that goes to the taco plage come from? |
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Wiring for oil temp?, Where does the wire that goes to the taco plage come from? |
Joe Owensby |
Jan 7 2008, 08:32 PM
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#1
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JoeO Group: Members Posts: 527 Joined: 7-January 06 From: Spartanburg, SC Member No.: 5,385 Region Association: South East States |
As title said, I need to hook up my oil temp gauge after about 2 years on stands. I can't find the wire that goes to the taco plate temp sensor. It may have broken off the harness. I re-covered the portion of the harness from the exit of the firewall upward. Did I maybe cover up the temp wire, or does it come from somewhere else?
Thanks, JoeO |
Spoke |
Jan 7 2008, 09:40 PM
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#2
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Jerry Group: Members Posts: 6,986 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
The oil temp gauge wire goes from the taco plate to the relay board via the engine harness. From there the trace crosses the relay board to the connector to the cabin harness. The end of the wire should be somewhere under the carpet under the console by the shifter.
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SirAndy |
Jan 7 2008, 10:54 PM
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#3
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Resident German Group: Admin Posts: 41,669 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
As title said, I need to hook up my oil temp gauge after about 2 years on stands. I can't find the wire that goes to the taco plate temp sensor. It may have broken off the harness. I re-covered the portion of the harness from the exit of the firewall upward. Did I maybe cover up the temp wire, or does it come from somewhere else? 1. what year is your car? early cars didn't have the wire in the harness ... 2. if you have a later model car, the wire exits the main loom right under the battery tray. (on top of the engine!) it's green/black and has one of those large plastic connectors on it that accepts a female spade connector. (IMG:style_emoticons/default/bye1.gif) Andy |
SirAndy |
Jan 7 2008, 10:55 PM
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#4
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Resident German Group: Admin Posts: 41,669 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
The oil temp gauge wire goes from the taco plate to the relay board via the engine harness. From there the trace crosses the relay board to the connector to the cabin harness. wrong on all accounts! (IMG:style_emoticons/default/shades.gif) Andy |
So.Cal.914 |
Jan 8 2008, 12:43 AM
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#5
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"...And it has a front trunk too." Group: Members Posts: 6,588 Joined: 15-February 04 From: Low Desert, CA./ Hills of N.J. Member No.: 1,658 Region Association: None |
It's one wire, run it thru the tunnel along the loom and to your console, hook it to
the gauge. I did it on my 71 and my 72, no big deal. |
type47 |
Jan 8 2008, 08:30 AM
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#6
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
i agree w/Andy if you car is a later car but add the fact that there is a wire from the taco plate to the connector found under the battery tray that he describes. my fuzzy recollection is that the wire is a solid green wire but the color of course won't matter. and i agree with the other poster that if you don't have the connector under the battery tray as part of the harness, you could just run a dedicated wire thru the tunnel for the gauge.
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Spoke |
Jan 8 2008, 01:43 PM
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#7
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Jerry Group: Members Posts: 6,986 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
The oil temp gauge wire goes from the taco plate to the relay board via the engine harness. From there the trace crosses the relay board to the connector to the cabin harness. wrong on all accounts! (IMG:style_emoticons/default/shades.gif) Andy Well at least I'm hitting 100%. Hmm. I guess 2 wrongs make a right. I hooked up the oil sender on my 71 using the wire I found under the carpet by the shifter. This wire went to the wire harness connected to the relay board. The trace went across the relay board to an unpopulated pin on the engine harness. I added the pin and ran down to the oil temp sender. What is the right way to run this wire? |
Cevan |
Jan 8 2008, 02:28 PM
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#8
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Senior Member Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 |
Here is my post on this topic. My wire was green and exited the wire loom below the battery. I would guess that older cars that weren't pre-wired for the center console may not have this wire.
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SirAndy |
Jan 8 2008, 05:03 PM
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#9
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Resident German Group: Admin Posts: 41,669 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Well at least I'm hitting 100%. Hmm. I guess 2 wrongs make a right. I hooked up the oil sender on my 71 using the wire I found under the carpet by the shifter. This wire went to the wire harness connected to the relay board. The trace went across the relay board to an unpopulated pin on the engine harness. I added the pin and ran down to the oil temp sender. What is the right way to run this wire? yes, i would think so. i like to use "unused" wires whenever i can. sure beats running a new wire through the center tunnel ... however, my point was that that is not the factory wire for the oil-temp gauge/sender ... (IMG:style_emoticons/default/beerchug.gif) Andy |
Joe Owensby |
Jan 8 2008, 07:34 PM
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#10
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JoeO Group: Members Posts: 527 Joined: 7-January 06 From: Spartanburg, SC Member No.: 5,385 Region Association: South East States |
Thanks everyone. I will check the wires below the battery to see where one should be exiting the bundle. JoeO
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Spoke |
Jan 8 2008, 11:05 PM
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#11
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Jerry Group: Members Posts: 6,986 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
Here is the schematic from my 70-72 Shop Manual by Carbooks. The Haynes manual also has this same schematic page. My 71 was wired like this diagram. It shows item 42 to be "Oil Temperature Indicator (optional)". It is wired to the relay panel on pin 3. Pin 3 on my 71's engine harness was empty so I added the wire to the sender here.
Pin 3 from the engine harness runs over the relay board to pin 6 to the cabin harness. The schematic shows this wire terminating beside the combinational gauge. In my car, this wire was under the carpet beside the shifter. Don't know if the factory did this or dealer option but schematic and car agreed. This made it very easy to connect the oil temp sender. Attached image(s) |
SirAndy |
Jan 9 2008, 01:05 PM
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#12
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Resident German Group: Admin Posts: 41,669 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
It shows item 42 to be "Oil Temperature Indicator (optional)". learn something new every day. i didn't know they were an option on early cars ... (IMG:style_emoticons/default/idea.gif) looks like the optional install used a wire going to the relay board. i'll have to check on that. i know my '70 did not have an extra wire on the relay board for a temp gauge ... (IMG:style_emoticons/default/idea.gif) Andy |
orange914 |
Jan 9 2008, 09:19 PM
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#13
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
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