Smoke, Burning smell, bad noises?
#1
Smoke, Burning smell, bad noises?
Got into the garage tonight and while idling there for a moment heard an arrhythmic, loud click clacking from the area of the left rear quarter panel. There was a fair amount of smoke pouring out of the deck lid and a very acrid odor. All belts are intact. I could see nothing amiss with a cursory flashlight check.
Any ideas?
Thanks,
rbeggs
Any ideas?
Thanks,
rbeggs
#2
Rennlist Member
Hmmm... Check distributor? Then valves? All that I can think of in that area, though an exhaust leak would be easy to rule out while you're looking around.
Did you see where the smoke appeared to be coming from?
Did you see where the smoke appeared to be coming from?
#3
Couldn't pinpoint the source of the smoke. It seemed to be coming up from under the pulley area. If the distributer was an issue wouldn't there be some running issues? It idled smoothly while all this was going on.
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#10
Very mysterious. Started it up this AM to decide drive or tow to shop. Nothing, nada, runs smooth as silk. There is no audible change to its signature noise profile. I drive it for about 15 minutes, stop listen, everything appears to be absolutely fine. No scrape marks inside the fan housing. Tonight, started it up, drove home, no problemo. I don't trust it though. No out of town driving till the problem presents itself again. Then it may be more diagnosable.
I think it's related to the fan bearing. We'll see.
Thanks.
-rb
I think it's related to the fan bearing. We'll see.
Thanks.
-rb
#11
Three Wheelin'
Crazy idea, but could your aux fan have failed in a mess of electrical smoke? Roughly in the correct spot on the car, and could make a noise if failing. Also, it could appear to be intermittent, as it only runs under certain conditions.
#12
Interesting idea that. I'll figure out what I need to do to force operation of the aux fan and see what happens. If it should run and doesn't that would be the answer. Not crazy at all.
-rb
-rb
#13
I know that this is in LEFT FIELD however dealing with as many Porsche cars through the years, critters like to get inside the warm deck-lids and hunker down for the evening. It's possible but just food for thought.
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#14
Three Wheelin'
6: Rear (AUX) fan low speed/resistor: Set fan speed to 1 and minimum temperature. Slowly increase temperature setting. The rear fan should start at low speed approx. 20 deg. C.
7: Rear (AUX) fan high speed: Set fan speed to 3 or more and minimum temperature. Slowly increase temperature setting. The rear fan should start at high speed at about 20 deg C.
Alternatively, you can remove the relay and jumper the terminals (see under rear aux fan here).