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Intermittent Front fan + ABS Light problem??

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Old 02-24-2006 | 09:39 AM
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Question Intermittent Front fan + ABS Light problem??

To all the clever souls out there.

Not sure if this is a problem or not, but there are a couple of thing I need to clear up / get help on?

When I start the car, the ABS light stays on until I blip the throttle or rev the car enough, when driving, and it will go out. Why? It is a problem? How do I sort? I have had 2 Porsche mechanics look at this and they don’t’ know why it does it or think it is a problem.

Also

At low speed / revs around town, I notice there is a front fan / motor that comes on intermittently. It seems to be separate from the main 2 front blower fans but could be the same ones? Why? Is it a problem? How do I sort? Front blowers and rear heater motor were replaced a few months back so these shouldn’t be a problem. I read a thread a few weeks back talking about the resistor / Temp Coil in the rear blower motor. Would this have anything to do with it?

I had a problem with the battery draining so I recharged it a few days ago, but could both of the above linked to a low battery problem. When it was low before the stereo went off until you revved the engine.

Most of my / the wifes daily runs are short and not at speed so mainly low rev's. Not sure in these cold UK days if this is draining the battery?

Any help would be welcome.

Chris W.
--------------------------------
C2 CAB 964 1991 GP White.
Old 02-24-2006 | 09:45 AM
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I have also noticed a front fan comes on periodically in my car - never figured out where it is or what it is, and I don't even notice these days.

For your ABS light - when I got my car, my ABS and PDAS lights would stay on until I hit 3000rpm. Obviously a C4 is a bit different, since my lights are supposed to come on when the car has been sitting and the brake system is charging - but mine stayed on even when it was charged until I hit 3K rpm. And the culprit was..... the clock.

Don't know if it will be the same for you, but for me it seems the clock caused the problem. Replacing it solved it completely - seemed to make some difference to the current from the alternator. There are instructions around for resoldering the connections on the back of the clocks (they are known to be a problem) - might be worth a try.
Old 02-24-2006 | 09:53 AM
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:confused HI,
I have 91 Turbo 2, and i get an occasional, fan/motor noise from the front of my vehicle. I have always ignored it and put it down to the fuel pump?
Have any other 964/965 owners had this noise??
Old 02-24-2006 | 10:29 AM
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[QUOTE=DaveK]
For your ABS light - when I got my car, my ABS and PDAS lights would stay on until I hit 3000rpm. Obviously a C4 is a bit different, since my lights are supposed to come on when the car has been sitting and the brake system is charging - but mine stayed on even when it was charged until I hit 3K rpm. And the culprit was..... the clock.QUOTE]

I'll give this a go over the weekend - Cheers.
Old 02-24-2006 | 10:44 AM
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Are you maybe hearing the oil cooler fan?
Old 02-24-2006 | 11:17 AM
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Originally Posted by jimq
Are you maybe hearing the oil cooler fan?
Jim - Again i will check this over the weekend. I also notice when i first start the car, i can here the oil pumping around in the rear quite loud. Again, not sure if this is normal but the Porsche mechanics did't say anything about this.

Thanks Jim

Chris W.
Old 02-24-2006 | 11:23 AM
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That is normal - it's been raised before.
Old 02-24-2006 | 11:23 AM
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Originally Posted by jimq
Are you maybe hearing the oil cooler fan?
Jim - Also forgot to mention my oil temp gauge very rarley moves as i don't tend to have a heavy left foot (well maybe that's not exactley true on open back roads to work some days). Just checked this page out http://p-car.com/diy/fan/ it gives you the temperatures of the gauge and at what temp the fans works. Mine is always between the 122F and 194F position.

Chris W.
Old 02-24-2006 | 11:37 AM
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Originally Posted by DaveK
That is normal - it's been raised before.
Thanks Dave. - Have you sold the car yet. I'm sure this ebay saga is just a ploy to keep it longer. The story of you selling your car seems to be a talking point on this forum...Good luck with the new wooden flooring. I sanded mine and had dust all over the house for weeks. I also had flooring layed in the kitchen and had to have self leveling concrete to make it flat. But I still have a low point around my washing machine which creeks every time I walk on it......

Cheers

Chris W.
Old 02-24-2006 | 11:44 AM
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Chris...At least for the battery I can help... A Porsche Trickle Battery Charger...

Dave and Sandy...What’s with the floors, explain.

Nice to be able to chat in European... Is that a language...
From here,
Marc...
Old 02-24-2006 | 11:51 AM
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Chris : No - car is not sold, and the adverts have all finished. I am pretty sure I still want it to go though so will advertise again in spring - the other day, the Focus was in for an MOT so took the 964 to work. On the way there I thought : it just feels like any other car. I was home at lunchtime and got a call saying the MOT was done - since it was just around the corner I went and collected the focus - and put the Porsche back in the garage.
There have been many days when I've taken the focus to work and gone home at lunchtime to swap with the Porsche just 'cos I fancied it. I never thought I'd see the day when I already had the Porsche out but swapped back to the focus!

Marc - had to get rid of the carpet 'cos I'm allergic to dogs (make me sneeze) and Sandy has a dog. Wanted the original floorboards sanded, but that's not possible for various reasons. So got a quote for "real wood" boards on top of the existing ones - pretty expensive. I wouldn't mind - but we were warned the dog claws would destroy it anyway so I'm thinking perhaps laminate will be the solution even though I don't really like it.
Old 02-24-2006 | 12:02 PM
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Hey Dave, how did Sandy get the - - - into the country? Have the laws changed?
Sorry man, I’m laughing... Who said loving a woman was easy... Just out of curiosity what kind of - - - is it... Ah,Ahhhh...schew... (sneeze)...
Old 02-24-2006 | 12:05 PM
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Laws have changed now - dogs have passports. It takes 6 months to arrange it (has to be 6 months from when the micro-chip is embedded in the dog) - then she can go through customs with her passport. The modern world eh?

Dog looks a bit like a german shephard (smaller though) - but is a cross breed.
Old 02-24-2006 | 12:14 PM
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Dave - 964 like a focus!!!!! maybe an RS Focus but still, that's quite an extreme view you've got. I hope you are feeling OK...old age isn't setting in...Your not that priest, Father Austin Purcell 'the most boring priest in the world' off Father Ted with the dull voice!!!!!!
Keep the razors locked-up!!!!!

Good luck with everything

Chris W.
Old 02-24-2006 | 12:14 PM
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MARC A. 964 C4
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And what about a plastic linoleum floor covering, maybe fact simile wood panelling, or something bland colour wise, or fact simile "green grass", now that would be practical... Easy to install as its pre-glued... Strip the carpet, clean the existing wood panelled floor and lay directly on to that surface, obviously something that suits your tastes... It’s practical, not expensive and a great DIY for young lovers... Another option maybe for you, Sandy and woof woof...


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