My 2006 Chevy Silverado 4X4 blower fan stays running after ignition shutOff? I cannot control the fan speed either,The display turns on and off every time, all different setting work, the bars to show the fan speed work etc. Its just the fan speed has a mind of its own, usually really low. Then once its on, when I turn off the ignition I hear the fan running quietly until i remove the blower fuse 40A.
It sounds as if the blower motor relay is stuck, on your vehicle the relay is part of the blower motor resistor, the resistor is behind the glove box.I hope this helps. Take care. If you have more questions for me about this vehicle or if you just want to say Hi! use testimonial. Thanks
Testimonial: "Is that the same as the Blower Control Module?. thanks!"
Yes.
Thanks Mike. I clicked on "helpful" but it just grayed out and remained at 0. I like to stick with OEM=ACDleco, do you have another brand that has worked well for you? Plus the module apparently had an update (that WAS covered under a warranty-but they discontinued that defect replacement end of 2016-WTF) that gets mentioned constantly, but it requires splicing into the harness, which is not a big deal for me either. I'm assuming you would recommend I use that updated module? I plan on replacing that nightmare 3rd screw tucked behind the center console(why TF does GM always do things like this?), its just how I do things, and I REALLY do not want to do this job more than once, as the research indicates most ppl just leave the screw out b/c its near impossible to get to. Ive replaced HL & DRL on my wifes 2010 Burb, and first set were defective=PITA to get to I was NOT happy with all the factory misalignment's that occur when one R&R so many bolts including fasteners that snap etc. Anyway, I will try the helpful tab again, if it doesnt work i will reset the page & try it again if I can get back here-lol.
The important thing is that you get the answers you need. I to believe in OE parts. When you see how cheaply made even the OE part is you'll see why they upgraded it. Stay warm.
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Crazy not sure what caused it to do that.. lets find fan motor plug temporary fix install cutout switch on the fanline ...Need schematics to trouble shoot..
SOURCE: fan control switch
the blower resistor and pigtail will need to be replaced. good luck ive seen this problem a lot of times mr gm ha ha
SOURCE: blower fan
it sounds to me like your blower moter resister or your blower moter switch are going bad both are right under the hood next to the blower moter one has 2 witers on it the other has 4 it usuley on the pass side right near the window
SOURCE: air conditioning blower stays on at all times.
Per your description, I believe you may have a blower fan relay that is stuck closed.
Remove the relay from the under-hood fuse center and see if the fan stops.
If it does stop, put the relay in slowly and see if you here the relay "click" and the fan come back on.
Let me know.
Regards,
SOURCE: 2003 Silverado ac/heat blower does not work
yes make sure all the wires are off the blower motor and jump it to give it 12 volts if the blower works the problem is else ware. get back to me if you need more help,please don't leave bad rating get back to me and we'll go from there
SOURCE: 1992 Cadillac Coupe Deville blower fan runs all the time
The BLOWER MODULE is located on the A/C EVAPORATOR housing located UNDER THE HOOD passenger side firewall. Has 2 electrical connectors. Mounted with 4 screw bolts.Hope this helps
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