Webthe coolant temp sensor is very high up in the system and if the coolant level drops below it it won't get a good reading so the fans go on full blast to prevent the engine from.

Webafter a 3 second delay, the pcm supplies a ground path for the high speed fan relay and the cooling fan s/p relay through the high speed cooling fan relay control.

Webto answer the question, the radiator cooling fans on these models are controlled by the pcm.

Webthis is a relatively common problem with these trucks.

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If you're wiggling harnesses/wires and other electrical functions.

Webthe cooling fans just recently started staying on after i shut off the engine.

Webmy 2016 silverado’s fans stay on after turning it off.

They’re supposed to kick open on when engine gets too hot.

Webgm silverado radiator fan stays on (sensor good thermostat bad) this video covers the part that needs to be replaced when your gm vehicle marks no.

Anyone run into this yet?

Webmy coolant temperature on a 2014 chevy silverado 1500 stays on 160 degrees and the radiator fan runs on high after the engine is turned off

I believe they're supposed to default to on if there's not signal from the.

Webthe fans went to full speed and stayed there until i shut the truck off.

My first recommendation would be to connect a diagnostic scan tool to the.

Webone of those may be broken and contacting body somewhere and allowing the fans to be stuck on.

It appears that the problem is with the engine coolant temperature (ect) sensor or its wiring.

Webi unplugged the engine coolant temp sensor and the fans still did not come on.

Webwhen coolant temp hits 95 degrees thermostat stays open and fans come on.

Temperature gauge moves when i turn the truck on but stays at 160.

Not sure if there is a temp sensor going bad, or maybe a relay.

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When this happens my temp gauge will read.

The temperature gauge stays around 165 degrees, even while driving.

2016 chevy silverado fan keeps running after engine is shut off.

Webi have a 2014 chevy silverado 1500 5. 3l that i am having a issue with the cooling fans running on high occasionally.

Anyway, he reset the.

The chevy mechanic will know what to do about your engine.

Fans keep running, air conditioner.