The alternator to starter motor cable isn t quite heavy duty enough and can corrode internally or.
Porsche 997 alternator cable replacement.
If you are unsure of what you are doing you should consult with a certified mechanic or better a porsche dealer.
Cost me 30 with a genuine bosch regulator versus 1000 for a new porsche alternator.
How to replace the alternator starter cable on a porsche 997 1 c4s 2006 disclaimer.
Occasionally after driving the car wouldn t start which was an issue with the early 997 s.
Parts 997 607 019 03 997 607 019 03 997 607 019 03 99760701903.
May qualify for free shipping.
Porsche have a stronger thicker upgrade replacement available.
However there is a cable that connects from the starter to the alternator which can cause slow cranking issues.
A properly functioning alternator will show above 14v while running.
Porsche 911s of years 2007 and 2008 and maybe afterwards using a differently keyed l dfm connector on the voltage regulator than previous years 997s.
Had this 997 come in today for a little tsb update.
All i can add is a.
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Alternators 997 603 012 01 use one type that will not plug into the wiring harness connector that had a 997 603 022 01 alternator.
Usually the starter motor is the culprit.
Porsche issued a tsb on the problem which calls for replacing the starter alternator cable on the engine.
It is a very common and very well documented issue in early 997 s.
No small task unfortunately.
You do everything at your own risk.
Pelican parts forums porsche forums porsche 996 997 991 forum.
They could be damaged causing symptoms that look like a bad alternator.
The job requires pulling the alternator to get the cable off it removing the cable from the starter then.
This is for seasoned mechanics who knows what they are doing.
The alternator is connected straight to the positive terminal of the battery via a 16mm2 cable without any fuse or relay.