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Old 02-06-2023, 12:19 AM   #1
7beast
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Join Date: Apr 2014
Location: Houston Texas
Posts: 46
1990 c3500 coolant temperature sensor wiring question

Hey fellas I was wondering if anyone on here could tell me what color the 2 wires are for the coolant temperature sensor on the top of the intake near the thermostat housing? And also is one wire for signal and the other ground or are they both signal wires? My harness is all jacked up with connectors missing as the truck sat with no drivetrain for many years.. thanks again in advance
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