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Discussion summary
YOUR RESEARCHNoise coming from Passenger Dash when Ignition is turned on.
Leading reported evidence
Disconnect blower and the sound still exsist
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Performed · outcome unconfirmed
I disconnected the blower and the sound still exsist.
Noise coming from Passenger Dash when Ignition is turned on.
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Leading evidence: 'Disconnect blower and the sound still exsist' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect blower and the sound still exsist' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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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.
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Noise coming from Passenger Dash when Ignition is turned on.
Replace do the exact same noise
Suggestion or failed attempt
No successful repair reported for this finding.
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Unsuccessful attempts
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Discussions
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Suggestion
My ****ty neons lamps at home that I'm too lazy to change do the exact same noise.
Noise coming from Passenger Dash when Ignition is turned on.
Test by reassembly it returned
Suggestion or failed attempt
No successful repair reported for this finding.
0
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1
Discussions
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Suggestion
At one point it was ultra quiet in testing by reassembly it returned to noisy.
Noise coming from Passenger Dash when Ignition is turned on.
Use phone app and mic right at the vent opening
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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.
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion
It's about 45 dB (using a phone app and mic right at the vent opening
Noise coming from Passenger Dash when Ignition is turned on.
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19 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Good Afternoon,
I posted to rentech last night and I thought I would also post to rennlist today to see if someone has an idea of the issue going on my car.I am new to the Porsche world and recently purchased a 1999 Guards Red C2. In the past few days I have noticed a loud fan noise/pump noise under the passenger side dash when the ignition key is turned to the on position. This noise seems to be independent of the AC fan. I am not sure if this sound is normal for a 911 or something that I should be more concerned with. I will note that the noise will continue until the ignition is **** off. With that being said, I was wondering if anyone knew what this noise could be and if it�s something I should be more concerned with.
Thank you in advance for your help!
It sounds like mine, I was wondering as well yesterday, as a matter of fact. I took it for a normal "old school" electrical noise old stuff always have, but curious if someone knows for sure.
My ****ty neons lamps at home that I'm too lazy to change do the exact same noise.
thanks
@mffarrell
for the reply
better stated, I'm wondering if
1) anyone else hears the sensor motor/fan at the passenger round vent below heater vent?
2) is it supposed to be on even when the heater fan is switched off?
Here's a video to gauge the noise level. It's about 45 dB (using a phone app and mic right at the vent opening
You Tube
I have the same sound. I disconnected the blower and the sound still exsist.
@mffarrell
any chance you have a part number or a diagram showing the location?
Found part #
99665324100
@GH996
thanks a bunch for checking this out on your car!
Yes, that's the correct part#. At $350 for the fan/sensor I don't want to get a new one if it's about the same noise level.
I did find a spec on the fan itself and states <26dB @ 10cm. Hard to measure as i don't have a space quieter than that to measure.
I'm going try to disassemble it some to see if I can oil the bearings.
Looking for a PCA gathering to listen to some fellow 996 dashes
Thanks for the reply!
I took the assembly apart, took cap of sintered bearing, put a little oil on it. At one point it was ultra quiet in testing by reassembly it returned to noisy.
i may have to get a new one
So it was $350 for that part? Where did you source it? mine is whinny as well.
(Well not sure why it wasn't showing on pelican when I was first searching, but I found it on pelican now.... $367
)
