Discussion
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.
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 ?
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 ?
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?
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?
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
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
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?
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?
Gassing Station | Porsche General | Top of Page | What's New | My Stuff