20 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
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Discussion summary
YOUR RESEARCHfunny noise - Page 1 - Porsche General - PistonHeads UK
Reported or suspected cause
bearings in the heater motor
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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1
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Reported cause
apparently it was the bearings in the heater motor that had dried up, you just have to rave the motor out and regrease or wd40 them.
funny noise - Page 1 - Porsche General - PistonHeads UK
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Leading evidence: 'bearings in the heater motor' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'bearings in the heater motor' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Lubricate /swap' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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 suspect a cause
1
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Suspected cause
Goodlife -it's probably the little fan that sucks the air over the temp sensor -bearings probably on their way out.
funny noise - Page 1 - Porsche General - PistonHeads UK
Lubricate /swap
Suggestion or failed attempt
No successful repair reported for this finding.
0
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Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
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Suggestion
I've got a noisy footwell warm air blower which I'm building up to trying to lubricate/swap.
funny noise - Page 1 - Porsche General - PistonHeads UK
Recommend before i start pulling things apart
Suggestion or failed attempt
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Reported fixes
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Unsuccessful attempts
1
Discussions
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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.
Discussions that contain suggestions
1
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Suggestion
Is there a good workshop manual anyone can recommend before I start pulling things apart?
funny noise - Page 1 - Porsche General - PistonHeads UK
Run another fan
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.
Discussions that contain suggestions
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.
funny noise - Page 1 - Porsche General - PistonHeads UK
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.
20 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T061840Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
i had the same problem with my car (88 3.2 carrera),
the heater motor would would make like a squealing noise only on start up then eventually stop.
apparently it was the bearings in the heater motor that had dried up, you just have to rave the motor out and regrease or wd40 them.
never got round to doing mine, just never took it out in winter.
just taken the motor to an electrical specialist, the one that re-wound it a couple of months ago.
he said it looks like the bearing has collapsed,
will post again when i know more.
does anyone know ,is it this motor that just spins faster when the switch is in pos. 7,8,9 ?
or do these positions run another fan ?
Most interested to hear what you find. I was told when I bought my car recently that one of the blowers is not working and the heater needed oiling. As I do my own work I would like to know where these bits are? Haynes manual a waste of space on this topic.
cheers
Martyn
Don't waste your money on a used engine blower motor, it is really a false economy. Years ago we tried rebuilding the motors and found that the bearings collapse in time with the brushes, the commutator & the windings failing, we had many problems and eventually gave it up as a bad job.
The footwell blowers are different though, very often it is just the oilite bushes that have siezed or dried, so a simple strip, lube and rebuild often yields successful results.
Unfortunate really as the footwell blowers are a lot cheaper than the engine bay unit; typical eh?
Speaking of footwell blowers (presumably)...
I notice that even when the heater fan is switched off there is still some airflow in the footwells of my 993 when stationary. Is this normal?
Presumably that's from the separate cool air supply and stops when you slide both of the two sliders on the top row of controls as far left as they go?
I've got a noisy footwell warm air blower which I'm building up to trying to lubricate/swap. Is there a good workshop manual anyone can recommend before I start pulling things apart? Noted the earlier comment that the Haynes one is not up to much.
Chris
Steve, yup, totally normal. You'll probably hear the engine one going for a while after you've tunred off the engine too? The 993 has a system so when the engine bay is too warm the blower keeps going to shift the hot air elsewhere. 9M please correct me if this isn't true?
Bringing this one up again... HELP!
I've got a '97 993 4S that even with the fan off and vents shut you can still occasionally hear a noise coming from the radio/heating controls area. A sort of high-pitch tone that changes in pitch. It's never given any problems, the a/c & heating work fine, it's just weird. Anyone got any ideas?
sometimes getting a noise from the heater that sounds like something getting stuck up hoover (if you know what i mean )
its coming from the back , could it be something not opening fully.
any ideas ?
car is 88 3.2
steve
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