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Temp Gauge Fix (Page 1/1) |
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rbell2915
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JUN 02, 07:48 PM
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Hello, I'm doing several projects to my car and while I have the dash apart and center console apart, I decided to work on the temp gauge fix. I swapped the wire from 11 and 13, which were light and dark green, and nothing happens when I turn the car to run or on besides the speedometer. No lights turn on, tach does nothing. I disconnected and reconnected the plugs. Does anyone have any suggestions?
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rbell2915
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JUN 02, 08:06 PM
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Disregard, too many projects going on at once and I got that resolved. I mistakenly left the fuse out. Doh! But the temp light isn't coming on. I tried with a known good bulb, and I've swapped the wires at the temp sensor on the engine multiple times.
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sleek fiero
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JUN 02, 10:47 PM
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at the sensor on the engine ground one wire at a time with the key on. the gauge should pin to full scale with the gauge wire and the idiot light should come on with the other wire grounded. If this is not the case then you have some other issue.
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Vintage-Nut
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JUN 03, 10:43 AM
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 [This message has been edited by Vintage-Nut (edited 06-03-2025).]
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olejoedad
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JUN 03, 01:18 PM
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quote | Originally posted by Vintage-Nut:

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This is by far the easiest way to fix the wiring issue......change the wiring at the dashboard and leave the rest of the car alone!
Somebody was asleep in the Electrical Design Department at Pontiac when they missed this boo-boo![This message has been edited by olejoedad (edited 06-03-2025).]
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rbell2915
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JUN 03, 03:02 PM
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Thank you, I'll give that a shot. At least the gauge isn't pegging anymore, but one of the previous owners removed the temp sensor wiring plug so I need to find one in the junkyard. The pins were covered in electrical tape and just hanging out on the sensor pins.
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Vintage-Nut
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JUN 03, 04:54 PM
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ACDelco / GM PT110 Connector w/ 2-Wire Pigtail for the coolant sensor/switch

{I paid $17 back in 2023}
------------------ Original Owner of a Silver '88 GT Under 'Production Refurbishment' @ 136k Miles[This message has been edited by Vintage-Nut (edited 06-03-2025).]
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