Thermo fan staying on after key off

[madsav]

VT SS 2000 5.7ltr 6 speed ls1
After going for a random drive when i got home i turned the key off and the thermo fan stayed on till i turned the key to Acc then it stoped.
its done this 3 or 4 times just not sure if that normal or not

 

[Munz]

swap relays see if it stops

 

[madsav]

just tryed it and nope still happens, my brother says it could be the battery in the Key dieing and cause problems with the BCM not sure about that thou

 

[thatbrynguy]

Have you reseated all your relays? When it happened to my VY SS I had to reseat the low beam headlight relay. Odd but it fixed it.

Sent from my Galaxy Nexus using Tapatalk 2

 

[madsav]

ill get on to it out now thanks

 

[colourmesilver]

Sometimes mine does that, as long as battery ain't flat no worries

 

[Drewie]

Here is a pic of the sticker under the bonnet of my VX SS, it says fans may run after ignition is turned off, I guess it depends on how hot the engine is when shut down.

 

[BlackVXGTS]

Check the connections to your CTS (Coolant Temperature Sensor). If they are damaged or if the CTS is giving a faulty signal it can cause the fans to stay on after the ignition is turned off. Personally, in the 13 years I've owned by GTS, I've never had the fans continue to run after the ignition was turned off, except the one time when I damaged the CTS while changing the spark plugs.

 

[madsav]

Thanks guys, worked it out , The metal tab around the key didnt touch the key causeing it to cause a fault and the thermo fans where stuck on a open loop.
(i changed the VT part around the key with 2 metal tabs for the VX full metal tab and didnt adjust it)

 

[graham7773]

I'm with Drewie^^^The fans can stay on as a normal part of their operation. If the coolant temp is too hjgh the fans are designed to stay on until the temp drops to a factory set level.