Coolant temperature gauge does not work
- Thread starter fly_25
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Light green is for the gauge, and grounds through the sensor.
Idiot is dark green and grounds through the sensor as well.
Oopsie. had light green twice, but if you looked at the diagram, you could figure it out.
Idiot is dark green and grounds through the sensor as well.
A/G BODY WIRING DIAGRAMS - MalibuRacing.com
Special thanks to Cliff (AKA 81classic) for all the diagrams!
Oopsie. had light green twice, but if you looked at the diagram, you could figure it out.
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That was my post (Temp Light on Dash), where I show pictures of the temp switch for the ECM and connector. My ECM is located over on the passenger front fender well. Good luck. I have a different issue, where I see the single blade temp sensor coming out of the front passenger side of the engine, but can't seem to find the wire to connect it to. My temp dummy gage light inside the care pulses, never off or never fully displayed.
Kind of sounds like that wire is loose/exposed tucked away somewhere, shorting against a ground causing the light to flicker on and off. Mine is a green or green/white wire going to that sensor.
For a SBC the sensor tends to be a single wire unit that gets screwed into the head between 1 and 3 on the DR side or 6 and 8 on the PASS side. Since the heads are interchangeable side to side, the location is the same, just designated differently depending on what bank of the engine that head is bolted to.
The connection showing in the picture is a two pin GM specific connector that has a fancy name that eludes me right now. it is not weatherpak or Deutsch, the pins are flat and very thin or narrow; think the term is "metripak".
As noted above for a side mounted sending unit, the wire is a dark green and will have a spade female end on it enclosed in a plastic housing. it is perfectly possible that the connections rusted out due to corrosion between the wire and the terminal and the wire is just hanging in the wind, tucked away under something or wound back on itself and taped off.
Nick
The connection showing in the picture is a two pin GM specific connector that has a fancy name that eludes me right now. it is not weatherpak or Deutsch, the pins are flat and very thin or narrow; think the term is "metripak".
As noted above for a side mounted sending unit, the wire is a dark green and will have a spade female end on it enclosed in a plastic housing. it is perfectly possible that the connections rusted out due to corrosion between the wire and the terminal and the wire is just hanging in the wind, tucked away under something or wound back on itself and taped off.
Nick
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