Clicking sound from blower?

[warndogg]

Ok so one day last week I turned the Denali off took the key out and my blower for the HVAC was still blowing. Fast forward to yesterday when I replaced the Blower Resistor with the GM update one...fixed my original problem but now there is a slow clicking coming from the behind my glove box. The clicking is always the same no matter fan speed. And I think it goes away on high. I thought it might need a HVAC system reset so I did that twice but still have this clicking. Any thoughts? It's driving me crazy.

 

[M1Gunner]

Can you be more descriptive on the clicking? And if it’s set to full cold a/c raise the temp a couple/few notches and see if the clicking stops.

 

[warndogg]

Can you be more descriptive on the clicking? And if it’s set to full cold a/c raise the temp a couple/few notches and see if the clicking stops.

The clicks are steady at about 2 per second. The sound is coming from the blower fan area as far as I can tell. At first I thought it was the fan but it dosen't follow the fan speed. It sounds maybe like a gear? plastic on plastic which is why I thought to reset hvac thinking something was off with a vent door. I will try messing with raising the temp while full a/c is on when I get home later today. As far as I could tell the sound goes away when fan speed is on high. (Either that or I just cant hear it because of the fan noise).

 

[warndogg]

No matter what temp or setting climate control is on I have the sound. I dropped the glove box door and put my hand on the heat/ac box or whatever is right behind it and can feel the vibration. I think it might be the blower fan motor. The wife had to use the denali to take the kids to swim lessons. Ill drop the fan tomorrow and take a look.

 

[M1Gunner]

more Than likely it’ll be one of the actuators. Ruled out the climate so either recirc/fresh air, mode etc

 

[warndogg]

It was my blower motor. I pulled it out and it looks clean but it has a bad wobble to it like something is throwing off balance internally. Guess I'm gonna replace that any suggestion on brands? I am seeing prices from $35 to almost $100.

 

[warndogg]

Sorry to keep bugging you M1Gunner. I'm thinking.. not sure but I never had this problem until I replaced the resistor. Could the resistor possibly be the cause of the fan wobble? like it's giving off a weird ohm to the motor?

 

[M1Gunner]

All the resistor is doing is supplying different amounts of power to the motor. I’m actually very surprised with your findings considering it didn’t change with fan speed.

 

[warndogg]

All the resistor is doing is supplying different amounts of power to the motor. I’m actually very surprised with your findings considering it didn’t change with fan speed.

So I finally put in a new blower motor and it has the exact same tick in it. I think I am going to try a different Heater resistor. Can you tell me exactly which one I need and a part number maybe? I have a 2006 yukon Denali.

 

[Doubeleive]

my ex wifes suburban does that, hers has the slider controls, I found that if I adjust the passenger side control just a pinch up from max it doesn't do it, so I told her just use it like that, no problem. lol I think it's a door actuator that just doesn't like to be at max

 

[warndogg]

my ex wifes suburban does that, hers has the slider controls, I found that if I adjust the passenger side control just a pinch up from max it doesn't do it, so I told her just use it like that, no problem. lol I think it's a door actuator that just doesn't like to be at max

I can pull the blower motor and it dose it in my hand. Never had the problem untill I replaced the resister. I am going to try a different part number and see if it fixes the problem.

 

[Doubeleive]

I can pull the blower motor and it dose it in my hand. Never had the problem untill I replaced the resister. I am going to try a different part number and see if it fixes the problem.

sounds like you just bought a bad blower motor, I would just exchange it

 

[warndogg]

sounds like you just bought a bad blower motor, I would just exchange it

I would agree if the original blower motor wasn't doing the exact same thing

 

[Doubeleive]

I would agree if the original blower motor wasn't doing the exact same thing

the motor shouldn't be clicking, I don't think anything would make it click, but you could just hook it straight to the battery and test that theory, it's just a 12v fan any 12v dc power source will run it.

 

[swathdiver]

New things break Justin. Stick with GM OE or AC Delco Professional.

 

[warndogg]

New things break Justin. Stick with GM OE or AC Delco Professional.

I agree thats why I bought an AC Delco. I hooked it straight to 12v and the new fan works perfectly. I don't think its out of the realm of possibilities that the new resistor that I put in is faulty and yes I do know how resistor works but I'm just saying I never had this pulsing ticking motor vibrating until I put in the new style resistor. Thats why I am asking if anyone has a part # because there are at least 2 styles listed as working for this vehicle.

 

[warndogg]

This is the part I put in that is suspect here . And this is another one I listed as possible here . The problem is I threw out my original thinking this was going to be an easy swap.

 

[Doubeleive]

the parts you have linked are different, one has 1 connector on the back, the other has 2 connectors on the back, pretty easy to figure out

 

[warndogg]

the parts you have linked are different, one has 1 connector on the back, the other has 2 connectors on the back, pretty easy to figure out

Okay I realize that they're different parts that's why I'm asking for help because they're both listed as working for my Denali. But thanks

 

[Doubeleive]

Okay I realize that they're different parts that's why I'm asking for help because they're both listed as working for my Denali. But thanks

my point was if you look at your existing part connections (on the back) it will either have 1 connector or it will have 2 connectors, then order what you need accordingly. I think I did the same thing on 2003 Silverado years ago I couldn't figure out which one it used so I pulled it out and looked at it and then ordered the same one.