2 new sounds (1. Engine bay and 2. Front Blower)

[imported_cheapdad00]

2005 Expedition XLT - 197K Miles
Was my daily driver, son has been driving for last 6 months.

First is coming from engine bay whether AC is running or not.

Second is coming from cabin, if blower is on 2, no noise. If blower changed to 3, a loud noise starts, if blower is changed to 4, noise is much louder. Happens whether AC is on or off.

Trying to post recordings, but file upload wont allow.

 

[kramerpage]

Is it the blower motor bearings? Idk

Sent from my SAMSUNG-SM-G930A using Tapatalk

 

[Yupster Dog]

Pull the cabin air filter to see if there is something in the duct. For that fact 4 bolts and you can pull the blower and look at it and the duct work around it.
As for under the hood first thing i would check is the serpentine belt tensioner

 

[imported_cheapdad00]

Here is a link to the sounds - 2 sounds are in the Expedition folder.
https://www.dropbox.com/sh/7hkjyqp23ifyiw5/AAC6IohopcTHoi3pZPyowe5va?dl=0

 

[imported_cheapdad00]

Pull the cabin air filter to see if there is something in the duct. For that fact 4 bolts and you can pull the blower and look at it and the duct work around it.
As for under the hood first thing i would check is the serpentine belt tensioner

Thanks for the feedback. I didnt think the 2005 had a cabin air filter. I replaced the serpentine belt tensioner a few years ago, maybe the advance auto product is failing again.

 

[Hamfisted]

Have you ever had the timing chains and guides and oil pump replaced ? The blower noise is probably a bad bearing as mentioned. Replacing the blower isn't too hard.

2nd Gen Expedition HVAC Blower Replacement :

 

[Yupster Dog]

Does it sound like a rock in a tin can?

 

[imported_cheapdad00]

The blower motor sounds like a rock. See link to recordings I posted above.

 

[imported_cheapdad00]

Have you ever had the timing chains and guides and oil pump replaced ? The blower noise is probably a bad bearing as mentioned. Replacing the blower isn't too hard.

2nd Gen Expedition HVAC Blower Replacement :

Thanks for this video, very helpful. Have not had any work done inside the engine (other than 2 rounds of spark plug changes - but I dont really count that as inside engine).

 

[imported_cheapdad00]

Pull the cabin air filter to see if there is something in the duct. For that fact 4 bolts and you can pull the blower and look at it and the duct work around it.
As for under the hood first thing i would check is the serpentine belt tensioner

Just checked repair history, it was the idler pulley which was replaced, not the belt tensioner. I'll check that tomorrow.