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996 A/C blower motor noise?

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH996 A/C blower motor noise?

Reported or suspected cause

bunch of long pine needles

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

I've had this varying noise on my rainy day car (acura)and it turned out to be a bunch of long pine needles that had fallen off of our trees and worked into the fan housing over many months as the fan operated.

996 A/C blower motor noise?
Read full discussion summary

Leading evidence: 'bunch of long pine needles' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'bunch of long pine needles' (1 discussions; 1 report identifying it and 0 suggest it). No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 8 captured posts examined · 0 partial discussions

Compare 2 other evidence results

fan wobbling and rubbing against the housing

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

It ended up unbalancing the fan which in turn wore out the bearing holding the fan shaft which in turn got the fan to wobble when operating and it was the fan wobbling and rubbing against the housing that made the noise.

996 A/C blower motor noise?

piece of foam

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

I too had a noise and turned out to be a piece of foam that was hitting the blower.

996 A/C blower motor noise?
Reported and suspected causes (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

bunch of long pine needles

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

I've had this varying noise on my rainy day car (acura)and it turned out to be a bunch of long pine needles that had fallen off of our trees and worked into the fan housing over many months as the fan operated.

996 A/C blower motor noise?

fan wobbling and rubbing against the housing

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

It ended up unbalancing the fan which in turn wore out the bearing holding the fan shaft which in turn got the fan to wobble when operating and it was the fan wobbling and rubbing against the housing that made the noise.

996 A/C blower motor noise?

piece of foam

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

I too had a noise and turned out to be a piece of foam that was hitting the blower.

996 A/C blower motor noise?
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

Ended up repalcing the fan and the problem went away.

No unique explicit quoted action; no causal link assigned

Generation: 20261027T192637Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Went to start the 2000 996 coupe at lunch today (90 degrees outside) and the A/C came on and the blower motor started to make a terrible sound. It vaires at different speeds as the fan starts blowing faster/slower. I pulled off the cover under the dash above the passenger footwell and I think its comming from whats looks to be a blower on the right side (under the dash) of the big black plastic box under there. Driven a couple of times a week (32K miles on car) and never noticed any noise at all from there. Any ideas... Big job? little job? DIY? or dealer? Thanks

POST 2Original post

What kind of noise? Like something hitting the fan? A few folks have reported weatherstripping getting into the fan motor or even a bad pollen filter touching the fan.

POST 3 / ORIGINAL POSTEROriginal post

Yes, like something hitting the fan. The 2 things you mentioned sound like they could have fallen and are touching the fan. It looks like I could just unscrew the bolts holding the motor and drop it down (I'm sure I am over simplifying that) and see??

POST 4Original post

Actually - that is tougher than what you need to do. Open up the bonnet and on the passenger side closest to the cabin, undo the pollen filter housing. Mine had a plastic gasket that was slapping against the fan as it rotated making a terrible noise. Just pulled it out and everything was fine.

POST 5Original post

Have a look at the cabin filter area accessible from under the hood. I too had a noise and turned out to be a piece of foam that was hitting the blower.

POST 6Original post

I've had this varying noise on my rainy day car (acura)and it turned out to be a bunch of long pine needles that had fallen off of our trees and worked into the fan housing over many months as the fan operated. It ended up unbalancing the fan which in turn wore out the bearing holding the fan shaft which in turn got the fan to wobble when operating and it was the fan wobbling and rubbing against the housing that made the noise. Ended up repalcing the fan and the problem went away. Just a thought........

POST 7Original post

I just had mine at the dealer for the same noise (it is summer in Chicago!) , it was some insulation hitting the fan.

POST 8 / ORIGINAL POSTEROriginal post

Well you guys were right on...again! Took off the pollen filter this AM and found the remains of a mouse nest in the filter. Ther was a piece of something hitting the fan. I fished it out and the noise is gone. Thanks again for all of your help!

This is a source reference. Confirm exact model applicability in the original material.