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Looking for sensor

Looking for sensor

Postby gtie52 [OP] » Apr 07 2021, 8:44pm

I have a 2003 Silverado with a 5.3L engine, I need to find the temperature coolant switch. NOT the coolant temperature sensor above the first cylinder that has two wires and sends information to the computer. I need to find the one wire sender that sends info for the temperature gauge.
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Re: Looking for sensor

Postby OTCyberGuy » Apr 08 2021, 1:42am

I have 2000 5.3 and it should be the same. Sensor is driver side engine front side below the heads and behind power steering pump. I replaced mine last year. Was a pain to get to it but didn’t need to disassemble anything else.
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Re: Looking for sensor

Postby badbruin44 » Apr 08 2021, 3:12am

You will have to google around for a wiring diagram.
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Re: Looking for sensor

Postby Walkers » Apr 08 2021, 4:26am

Are you sure thats what you have? I haven’t seen a one wire temp sender for several decades. Usually the gauge cluster gets its feed from the ecu.
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