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 Post subject: 2008 Cayman struggles to start.
PostPosted: Fri Feb 07, 2014 11:42 am 
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Joined: Sun Apr 07, 2013 12:14 pm
Posts: 52
Location: Surrey
TIPEC membership: 6788
Hi guys,

I regularly drive my cayman at least 2-3 times a week, but over the last month or two it has struggled to start when I turn the key in the ignition, it sounds like it is really struggling, all the lights and pcm flash on and off a few times, then eventually the car starts. At first I thought this was due to the cold weather, but then the other night it happened after I had pulled into a petrol station off the A3, so by that point the car had warmed up, it was only switched off for the 5 minutes I filled the engine and paid, then it took 3 attempts of depressing the clutch and turning the key to get the engine to start. On a side note the pcm 2.1 on a few occasions has restarted itself while I have been driving, Im not sure if this is related or not. Any suggestions of what might be the problem would be fantastic thank you.

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 Post subject: Re: 2008 Cayman struggles to start.
PostPosted: Fri Feb 07, 2014 2:14 pm 
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Joined: Sun Nov 04, 2007 8:43 pm
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My guess the battery is on its last legs, modern CANBUS cars are very sensitive to voltage & I suspect that the battery is starting to flag.

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 Post subject: Re: 2008 Cayman struggles to start.
PostPosted: Fri Feb 07, 2014 3:13 pm 
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Cheers mate. Is there any way for me to test it myself, or is it a take it to the garage jobbiie?

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 Post subject: Re: 2008 Cayman struggles to start.
PostPosted: Fri Feb 07, 2014 3:29 pm 
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I agree with Jim, Porsche batteries are not the best.

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 Post subject: Re: 2008 Cayman struggles to start.
PostPosted: Fri Feb 07, 2014 3:38 pm 
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Joined: Thu Nov 29, 2012 11:06 am
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Location: South Kyme, Lincs.
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I bought one of these (at the old higher price boohoo) which tells you how the battery's performing - good piece o' kit seemingly.

http://www.amazon.co.uk/Sealey-12V-Batt ... ery+tester

If the battery's good then get an Indie to check that the voltages in all the connecting cables are what they should be BEFORE considering alternator / starter motor as I replaced both (duuur) which only slightly improved it (a similar situation). It turned out that one of the cables was performing incorrectly - they made me a new cable and then everything came to life - didn't cost me a penny. Sorry I can't be more technical - little know how here.

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 Post subject: Re: 2008 Cayman struggles to start.
PostPosted: Fri Feb 07, 2014 4:21 pm 
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If you have a Porsche Warranty then you'll need a Porsche battery otherwise they'll get excited. Otherwise my Box has £100 of 5 year warranty Halfords on it!

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http://tipec.net/region_southeastlondon.php

2018 Mitsubishi Outlander PHEV
2005 Porsche Cayenne S Now sold!
2000 Jeep Grand Cherokee Now sold!
2010 Mazda MX5 Mk3.5 2.0 Sport Tech
2000 Porsche Boxster S SOLD!
1987 Porsche 944 2.5


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