1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year > 1969 - 70 Shelby

1969 Shelby GT 500 temperature gauge

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66 KCode:
I can?t get the temperature gauge to work on my 69 GT 500, I took the gauges out and tested the gauge and it worked I?ve grounded the wire on the sensor and the gauge won?t move. What would be the next move.
Thanks in advance.

Bob Gaines:

--- Quote from: 66 KCode on January 31, 2024, 05:02:38 PM ---I can?t get the temperature gage to work on my 69 GT 500, I took the gauges out and tested the gauge and it worked I?ve grounded the wire on the sensor and the gauge won?t move. What would be the next move.
Thanks in advance.

--- End quote ---
Check the engine gauge feed harness for continuity. That plugs into the harness coming out of the firewall. Sometimes the wires get brittle and can break. I hope that is given it is easily replaced. If it checks out then you have to move farther back into the factory harness. I wire schematic is necessary so that you know which wire identification color to look for in the harness.

66 KCode:
Thank you, where would be a good place to get the wiring diagram fo that car.

jwc66k:

--- Quote from: 66 KCode on January 31, 2024, 06:50:37 PM ---Thank you, where would be a good place to get the wiring diagram fo that car.

--- End quote ---
Probably the "1970 Mustang Electrical Assembly Manual" (AM0033), available from NPD.
Jim

Bob Gaines:

--- Quote from: jwc66k on January 31, 2024, 07:25:07 PM ---Probably the "1970 Mustang Electrical Assembly Manual" (AM0033), available from NPD.
Jim

--- End quote ---
Probably a typo given the 1969 reference .Here is a reproduction of the 1969 assemblyline manual with scematics.https://www.npdlink.com/product/electrical-assembly-manual-69-mustang/138090

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