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goodcoffeecode
Newbie


Joined: 08 Jan 2019
Posts: 2



PostPosted: Tue Jan 08, 2019 7:54 am    Post subject: Engine struggles to turn over when warm Reply with quote

Hi all,

My 05 C2S starts fine when cold. However, if I, say, drive to the shops it really struggles to turn over when I come to restart it. It sounds like the battery is drained. However, the next day it starts fine again, as if someone has magically refilled the battery overnight. The battery is fairly new.

Thanks,

Chris
 
  
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jl-c
Trainee


Joined: 22 Jul 2013
Posts: 68
Location: Shropshire


PostPosted: Tue Jan 08, 2019 8:39 am    Post subject: Re: Engine struggles to turn over when warm Reply with quote

goodcoffeecode wrote:
Hi all,

My 05 C2S starts fine when cold. However, if I, say, drive to the shops it really struggles to turn over when I come to restart it. It sounds like the battery is drained. However, the next day it starts fine again, as if someone has magically refilled the battery overnight. The battery is fairly new.

Thanks,

Chris


Sounds as if you might have the common faulty power lead. Check resistance of leads alternator to battery and starter.
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goodcoffeecode
Newbie


Joined: 08 Jan 2019
Posts: 2



PostPosted: Tue Jan 08, 2019 8:54 am    Post subject: Re: Engine struggles to turn over when warm Reply with quote

jl-c wrote:
goodcoffeecode wrote:
Hi all,

My 05 C2S starts fine when cold. However, if I, say, drive to the shops it really struggles to turn over when I come to restart it. It sounds like the battery is drained. However, the next day it starts fine again, as if someone has magically refilled the battery overnight. The battery is fairly new.

Thanks,

Chris


Sounds as if you might have the common faulty power lead. Check resistance of leads alternator to battery and starter.


Cool, thanks. Is it a simple fix or a Porsche specialist visit?
 
  
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jl-c
Trainee


Joined: 22 Jul 2013
Posts: 68
Location: Shropshire


PostPosted: Tue Jan 08, 2019 9:00 am    Post subject: Re: Engine struggles to turn over when warm Reply with quote

goodcoffeecode wrote:
jl-c wrote:
goodcoffeecode wrote:
Hi all,

My 05 C2S starts fine when cold. However, if I, say, drive to the shops it really struggles to turn over when I come to restart it. It sounds like the battery is drained. However, the next day it starts fine again, as if someone has magically refilled the battery overnight. The battery is fairly new.

Thanks,

Chris


Sounds as if you might have the common faulty power lead. Check resistance of leads alternator to battery and starter.


Cool, thanks. Is it a simple fix or a Porsche specialist visit?


Unfortunately a simple fix but loads of hours to achieve. I think you will find a diy on Rennlist may even be on here, have a search.
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Hotpot
Silverstone


Joined: 13 Mar 2016
Posts: 111
Location: Manchester


PostPosted: Tue Jan 08, 2019 9:27 am    Post subject: Reply with quote

As said, faulty power lead. Had mine replaced last year because of same symptoms.
 
  
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D5RSR
Trainee


Joined: 18 Aug 2014
Posts: 80
Location: Leeds


PostPosted: Tue Jan 08, 2019 10:46 am    Post subject: Cable Reply with quote

Same symptoms as mine, changed the cable and its fine now.

DIY possible but a bit fiddly.

There's a link to RENNLIST DIY in here:

http://www.911uk.com/viewtopic.php?t=128080&highlight=
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Darren

997.1 C2S
Leeds
 
  
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deMort
Zolder


Joined: 21 Mar 2015
Posts: 5723
Location: Brighton


PostPosted: Tue Jan 08, 2019 7:01 pm    Post subject: Reply with quote

There are a few things it can be .. but this lead is the usual cause .

If your car is a manual then its about 4 hours labour + parts ..

If yours is a Tiptronic then its an engine drop im afraid .

I would tend to take off the throttle houseing and look at the lead at the back of the starter .. it tends to melt the plastic insulation if its this.

Job entails ..

Air box off , alternator out , a/c compressor out then just undo it and try and feed it around the many obsticles that are in the way.

Its connected bottom end on the o/s/r of the gearbox .
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