Just finished refreshing suspension, and thought - awesome....good to go for a while. As soon as I thought that, the AC is acting up.

Background/Symptoms:
Couple months ago, the condenser developed a crack. Had that replaced by a shop. All seemed OK.
Over last week or so, started to hear squeaking noise coming from under the glove box. Seemed to come on whenever front zone AC was active and set to blow. Knowing about this from reading threads on here, I assumed it may be the blower.

Get home yesterday, AC working just fine (except the annoying squeaking when blowing air).
Today, get in the car, start, and the rear zone is blowing air (although not cold), but front zone is not blowing any air at all.

Anyone can give input as to what could be the cause?
Few months ago I replaced the blower motor resistor/voltage regulator with a new one (knew from past my old VR was not providing all voltage it was supposed to (about 9 as opposed to about 12V).

Have not yet gotten in there - just got into work, but wanted to see if you fine folk on here can help provide possible places to check.

Thanks again.

 

Checked the fuse box. The 40A fuse (large orange in location 56), is all intact...not blown.
Checked any other fused (location 23 too), and all is OK.


Did more diagnosis on this after work.

Have some codes:
Air Conditioning Section:
353 - Feedback from blower regulator front value below lower limit value
2193 - Power Supply for blower regulator short circuited to ground

After I pulled the large fuses, checked and reseated them, I turned on the car and the front AC started cooling again.
It sure points to the blower regulator IMO.

Funny thing, I recently replaced the blower regulator with a new one. The part number was exactly what it was calling for (have to dig up now if needed).
Will have to get under glove box to looksie at the regulator now.
Guess will follow my blower regulator DIY to do this...lol.

Anyone have suggestions on this?

 

Hm yes. I would think maybe the the regulator as well. See if maybe this tech article will help with the replacement. Good luck. Let us know if this resolves the issue.

-Luccia

 

Thanks for the article.
The regulator is something I already replaced a couple months ago.
While diagnosing, noticed the regulator was not outputting the max 12V. Instead it would not output more than 9V. This resulted in fan spinning slower (does not blow as hard as it is supposed to).
After replacement, it all seemed fine. Except one day the ac seemed to start giving the squealing sound (from under glove box). One day the AC just stopped blowing.
PD with durametric showed the 2193 error.

So I will have to get under there, replug everything and make sure that there is nothing that could short (would be surprised to find, since all calling is insulated and nothing seems to be bare wire touching anywhere).

Also, I will have to take the front blower fan, to inspect for binding, etc.
The squealing seems to imply to me that bearings are not smooth (either grimed up or rusty or whatever). We will see - hoping to have time this weekend.

Anyone with other ideas, just let me know. Appreciate all the input.

 

Just finished taking the regulator and blower fan from car. The regulator, as stated earlier, is maybe a couple months old. Connections seemed solid but reseated anyway.
Took fan out.
The thing was very dusty. Used compressor to blow the crap out of it. Used those soccer ball needle adapters to reach way deep inside there to get the dust out. Made sure to get in deep into the spinning metal next to magnets. Blew until nothing was coming out. Placed a drop of oil onto the top of the shaft that fan spins around.
Noticed after cleaning the fan was spinning much more freely.
When put together, there was no squeaking or any abnormal sound. Actually thing the fan seems to be more efficient and cools quicker (could be my biased opinion as owner).
Regardless, hoping it is fixed. Will monitor and will report anything of note.

To take the fan apart, follow the article which pelican parts posted up in post#3 above.