Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Porsche Buyers Guides
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Model
Stock
Porsche 911
991 : 2011- 4
997 : 2004- 72
996 : 1997-2005 42
993 : 1993-1998 11
964 : 1989-1993 0
Carrera 3.2 : 1983-1989 0
Carrera SC : 1977-1983 0
930 Turbo : 1975-1989 1
Early 911 : 1964-1977 1
Porsche Other Models
Classic : 1950-1965 1
Boxster : 1997- 14
Cayman : 2005- 16
Cayenne : 2003- 11
Macan : 2014- 1
Panamera : 2009- 0
912-914-924-928-944-968 6
959 - CarreraGT - RaceCar 1
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Body Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [991] 2011-Current
Porsche 911 [991]
911 [997] 2004-Current
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
graeme
Newbie


Joined: 11 Aug 2017
Posts: 3



PostPosted: Fri Aug 11, 2017 9:38 am    Post subject: 997 warm start problem Reply with quote

Hello I have a recently purchased a 997 Carrera 4s (25000m) bought from Porsche hatfield with 2 yr warranty. Having stalled the car a couple of times I noticed that on a warm start the engine cranks very slowly and makes a clattering noise like someone shaking a bag of spanners. It then starts and runs fine and cold starting is also fine. I will take it to a dealer but wondered if anyone had experience of this, as any background information would be useful when approaching the dealership. Many thanks
 
  
View user's profile Send private message
   
JP_Turbo
Newbie


Joined: 27 Jan 2015
Posts: 18
Location: London


PostPosted: Fri Aug 11, 2017 10:04 am    Post subject: Reply with quote

Sounds like maybe a coil pack. But I am not an expert....

I would have thought the same thing to happen on cold start if a coil pack though Dont know
 
  
View user's profile Send private message
   
TTW
Newbie


Joined: 28 Jun 2014
Posts: 36
Location: Midlands

2004 Porsche 997 Carrera 2S

PostPosted: Fri Aug 11, 2017 1:06 pm    Post subject: Reply with quote

I have a 997.1 which can be problematic starting when hot, despite consistently starting good when cold and running good at all times. Having done some research online, there appears to be a known HOT START issue caused by a poor main battery to Alternator cable? - The cables themselves are around £80 but fitting seems to vary from 2-4 hours? - Apparently on Automatic its an engine out job, but not on a manual (fortunately mine is Manual).
 
  
View user's profile Send private message
   
graeme
Newbie


Joined: 11 Aug 2017
Posts: 3



PostPosted: Fri Aug 11, 2017 1:10 pm    Post subject: Reply with quote

TTW wrote:
I have a 997.1 which can be problematic starting when hot, despite consistently starting good when cold and running good at all times. Having done some research online, there appears to be a known HOT START issue caused by a poor main battery to Alternator cable? - The cables themselves are around £80 but fitting seems to vary from 2-4 hours? - Apparently on Automatic its an engine out job, but not on a manual (fortunately mine is Manual).


Mine too!, thanks for that G
 
  
View user's profile Send private message
   
graeme
Newbie


Joined: 11 Aug 2017
Posts: 3



PostPosted: Fri Aug 11, 2017 1:13 pm    Post subject: Reply with quote

C63_2_4S wrote:
Sounds like maybe a coil pack. But I am not an expert....

I would have thought the same thing to happen on cold start if a coil pack though Dont know


Thanks for that, agree with you logic, I think new coil packs were fitted in presale service but will look into it. G
 
  
View user's profile Send private message
   
DucatiRob
Suzuka


Joined: 22 Jul 2015
Posts: 1177
Location: Milton Keynes

2006 Porsche 997 Carrera 2S

PostPosted: Fri Aug 11, 2017 8:58 pm    Post subject: Reply with quote

Almost certainly your battery, easy to check if you have a decent multimeter, or possibly the cable to the starter motor which is a common failure.
_________________
Present
Carrera C2S Manual
Mercedes CLK DD
Ducati 996
 
  
View user's profile Send private message
   
Demort
Paul Ricard


Joined: 21 Mar 2015
Posts: 3107
Location: Sussex


PostPosted: Fri Aug 11, 2017 9:04 pm    Post subject: Reply with quote

As Rob says .. a slow spin over of the engine is battery or a high resistance cable to the starter which does happen on these .. the concern i have is the bag of spanners noise .. thats not normal .. if possible a sound clip of it please .
_________________
Mechanic

7pm - 9pm
 
  
View user's profile Send private message
   
Dexterich
Silverstone


Joined: 06 Sep 2010
Posts: 137
Location: Nottingham uk


PostPosted: Fri Aug 11, 2017 10:48 pm    Post subject: Reply with quote

TTW wrote:
I have a 997.1 which can be problematic starting when hot, despite consistently starting good when cold and running good at all times. Having done some research online, there appears to be a known HOT START issue caused by a poor main battery to Alternator cable? - The cables themselves are around £80 but fitting seems to vary from 2-4 hours? - Apparently on Automatic its an engine out job, but not on a manual (fortunately mine is Manual).


Absolutely a known problem with the starter/alternator cable, I suffered with this on my early c2s tip. On long runs battery also fails to charge as heat increases the electrical resistance of the cable which has a crimped "Y" connection that seems to be the root cause. Replacement cost not too bad on manuals but as you say is an engine drop on a tip Surprised .
Fortunately I found Zentrum in notts who have an in situ repair for around £200 - cable will probably need replacing eventually but since I had this done it's been perfect thumbsup
_________________
2004 997.1
C2S, Black, Tiptronic
 
  
View user's profile Send private message Send e-mail
   
monster
Hockenheim


Joined: 04 Sep 2010
Posts: 638
Location: Bournemouth


PostPosted: Sat Aug 12, 2017 1:40 am    Post subject: Reply with quote

And if its not the starter cable - its likely to be the actual starter motor!

I know the 'bag of spanners' noise you mean - its like a real heavy duty 'pinking' sound - i don't think its anything to worry about - mine did it when i had this problem - i changed the starter cable first that improved it a little, then i caged the starter motor and that really sorted it - turns over now hot or cold real fast!
 
  
View user's profile Send private message
   
TTW
Newbie


Joined: 28 Jun 2014
Posts: 36
Location: Midlands

2004 Porsche 997 Carrera 2S

PostPosted: Tue Aug 15, 2017 2:27 pm    Post subject: Reply with quote

Battery/Starter cable diagram. (997.1) - The cable is different for manual & tip vehicles.

http://www.design911.co.uk/fu/pt259_261_-cma81-cmo117/Porsche/997-MKI--911--2005--08/Batteries-and-Chargers/
 



cable.JPG
 Description:
 Filesize:  50.95 KB
 Viewed:  206 Time(s)

cable.JPG


  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 11 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum