Ptech1

Replacing the cable and starter as a package is the best solution possible. Everything else is just guessing one way or the other because both parts have been stressed while compensating... A starter amperage draw test will give you the answer of whether you're dealing with this common issue, or just a weak battery.

mattblack

did you fix your warm start problem?

Im having the same over here...

https://rennlist.com/forums/997-foru...arrera-4s.html

Petza914

Mine too.

vern1

Just had the wire harness replaced today. There was a 1.2v drop between alternator and battery. Post replacement the drop was 0.1v

iammulva

Had starter and wiring harness replaced (also replaced AOS "while you're in there"). First afternoon with it back and it's starting up better than it ever did, hot or cold!

mattblack

Forget about cables had all my replaced again and still did not help...

Go and replace your crank shaft sensor and it will fix the warm start problem... Look me 4 years to find this out

iammulva

Yeah - I saw your posts.... keeping my fingers crossed that I didn't have the issue you did. Several people seemed to have a simple starter/wiring problem. I hope I'm one of them. If you don't hear from me within a week or two, you'll know mine is fixed. I only have one car, so I drive it everyday, everywhere.

srseaman

2005 Carrera, 31,000 miles. I experienced sluggish starting, cold and hot, and thought it was the battery. My mechanic said it was a failing alternator. He suggested replacing the starter cable at the same time, as he knows them to have a flawed design causing increased resistance and sometimes causing engine fires. When mine was replaced, the rubber/plastic shield over the starter connection lug where the lead from the alternator joins was melted. My mechanic says he thinks I wasn't too far off from my own fire, and believes the cable design issue may have caused the regulator on the alternator to fail.

I was told that the new cable has holes in the connection lug to permit the solder/lead to better penetrate/connect, an indication of recognition of the earlier design problem.

Any one have this experience? I am hearing anecdotally of other cars having fires and of the dealer replacing these when the cars come in for repair. Both alternator and starter cable replacement was $1,600.

Petza914

You likely didn't need a new alternator and the new cable would've corrected your starting issue. The diagnosis on my wife's '05 was the same. I told them I just wanted to have the cable replaced to start with (had the AOS done at the same time as a preventative measure), and that resolved the issue for her car.

CP911

Winner winner chicken dinner.

I replaced the cable and starter and all my hot start problems vanished for good. Starters are definitely a wear item and I'm sure all the slow cranks stress the hell out of it. Alternator and battery are typically not the problem here.