Question about 2005 Chevrolet Silverado 1500 2WD

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High fan switch/relay

Location of high fan/blower switch/relay 2005 silverado

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  • Anonymous Mar 12, 2014

    where is location of the headligh relay switch for 2001 GMC silverado

  • Anonymous Mar 13, 2014

    location

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In frount of heatercore

Posted on Jan 20, 2009

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1 Answer

Where is blower fan relay located


Doesn't it work in any speed ? Could have Blower Motor Control Processor if yours has automatic HVAC .
Or if manual it has blower motor resistor . Both are located under passenger side dash . Remove insulator panel under the dash if it has one !
ORO How to replace blower motor resistor in Chevrolet Silverado

2005 Chevrolet Tahoe Blower Not Working

Sep 28, 2016 | 2006 Chevrolet Silverado 1500

1 Answer

NO AIR


I doubt its a relay.
The high blower relay only comes into play on the high setting. You have a 40amp fuse for the blower relay, then a 30amp fuse for the other speeds. The 30amp fuse powers the fan switch, when you turn it to high it activates the high speed relay.
I would check for power at the blower motor on all speeds.

Jul 11, 2013 | 2005 Chevrolet Silverado

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My fan blower will not work on high speed on my chevy 2005 silverado


if you got heat on all speeds and the blower motor is working properly then you probably need a new HVAC switch.

Jan 19, 2013 | 2005 Chevrolet Silverado

1 Answer

Fan for heater stopped working the A/C comes out while driving byt the fan does not blow.


There is a good chance that the wire harness has burnt out or the blower speed regulator. The other place that can cause this is a the blower switch it self has burnt out also due to the high current drawn by the blower.
Start with inspecting the switch first and then work your way to the blower resistor and harness. If the resistor has gone bad, replace the harness also. Oh and my bad and check the fuse and relay to your HAVC system.
Thank you for using fixya and Auto Zone should have the parts needs to repair your blower issues with the instructions to get the job done with common tools.

Jun 03, 2010 | 2005 Chevrolet Silverado

1 Answer

2006 silverado 5 speed heat, the high speed is not working. I do have the 4 lower speeds


The switch, high blower speed relay or the wire harness at the blower motor has gone bad. The highest setting 5 has no resistor, so the blower runs on high but the high current flow ends up burning up the switch's contact on that setting or the relay and may be the resistor wire harness at the blower motor has gone bad. Common would be the switch it self, if the switch is good. Then it's going to be the blower relay or wire leads at the speed resistor by the blower motor under the glove box by the passenger leg compartment. Keep me posted, be glad to help you get your Silverado running 100% again soon.

Jan 07, 2010 | 2006 Chevrolet Silverado 2500HD 2WD

1 Answer

Blower fan only works on high


If it is working at all then the relay and fuse is good and the problem is either the little vacuum hose on the back of the control switch panel or the panel itself.

Feb 01, 2009 | 2001 Chevrolet Silverado

1 Answer

A/c heater climat control switch


Check the relais module located inside under the rh side of the heather box you can see the connector most of them need to be replaced as they burn out you may need to replace the blower motor as well,high amp draw caused by faulty bearings will overload the blower motor controller

Jan 16, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

1 Answer

Blower control only works on high


Either the switch, relay or blower resistor has failed. I would check resistor and relay first. The resistor is a flat usually brown item attached by two screws to the blower box, usually fairly close to the blower fan. the relay is usually just upstream from there. Unless the switch feels sloppy, it's probably OK. If you can't locate these items, get a manual. It will help you with this and lots of other stuff!!
Good Luck!!

Dec 29, 2008 | 2005 Jeep Liberty

3 Answers

2004 Chevrolet Silverado Heater/AC Blower on without Ignition ON


there is no relay for the heater fan it's a 15 amp fuse and is on the accessories circuit. the reostat is responsible for all 3 speeds .with the key off there should be no voltage to the blower motor whether the fans speed fan switch is on or off. the fuse will be located in the fuse paneleither on the drivers left side in the dash or underneath the dash in the fuse block. you have a short in the harness that is under the dash and most likely it's a bad plug on the harness. your going to have to do some searching but that's where the problem short is... please rate

Oct 03, 2008 | 2004 Chevrolet Silverado 1500 Crew Cab

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