996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Has anyone replaced an alternator on a 996tt yet?

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Old 08-12-2009 | 10:00 PM
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Has anyone replaced an alternator on a 996tt yet?

Checked the battery at autozone, but they claim it is good and holding charge. I definitely need to address something in the charging system. I have a feeling it will be the most expensive part: the alternator. Has anyone needed to replace one yet? How bad is the labor? Should I check anything else to make sure its not the culprit (i.e. worn belt, bad tensioner, etc) or is that unlikely?

My local installer hasnt seen the car yet, but says it is VERY unlikely it is the alternator since he has never heard of one going bad on these cars. Any suggestions would help at this point. Thank you.
 
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Old 08-12-2009 | 10:12 PM
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Just did it. I have under 40k miles. Red Top battery was fine...

I did the polyrib (fixed from timing belt earlier..sorry: JB) belt at the same time since it was free labor at that point.

I think the part, new, was 7-800...labor was a few hours. I used a shop down here called "Foreign Affairs" as it was recommended by several people to me. No issues.
 

Last edited by jcb-memphis; 08-12-2009 at 11:01 PM.
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Old 08-12-2009 | 10:30 PM
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thanks for the info! I can get a new alternator for roughly 300. How much is the timing belt? how long is a timing belt supposed to last on these cars (i think audis last like 80Kish miles)? Any ideas on intervals for a waterpump? I'm trying to figure out what I should do while im in there.
Im a tick over 70k miles.
 

Last edited by ExclusiveTT; 08-12-2009 at 10:34 PM.
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Old 08-12-2009 | 10:46 PM
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mine went bad at 20k. i got a new one for $200 from autozone.
 
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Old 08-12-2009 | 10:47 PM
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took about an hr and a half.
 
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Old 08-12-2009 | 10:48 PM
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I'd just call Bob Varela there....PBOC president (track...racing, they have a Delara (sp?) prototype in their shop...etc., Cup car shop....).

They have a tire to the track option for people, etc. I think my price included labor and belt...and the alternator installed. I think the belt is a 60k service item.... I want to say Pompano Beach....

JB
 

Last edited by jcb-memphis; 08-12-2009 at 11:05 PM.
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Old 08-12-2009 | 10:50 PM
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I changed my alternator about a year ago. Here is my write up:

https://www.6speedonline.com/forums/...e-replace.html
 
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Old 08-12-2009 | 10:54 PM
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Originally Posted by jcb-memphis
Just did it. I have under 40k miles. Red Top battery was fine...

I did the timing belt at the same time since it was free labor at that point.

I think the part, new, was 7-800...labor was a few hours. I used a shop down here called "Foreign Affairs" as it was recommended by several people to me. No issues.
I thought this car had a chain, not a timing belt? Do you mean accessory belt?
 
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Old 08-12-2009 | 10:56 PM
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I meant the polyrib belt as described in the 996TT service listings on renntech.org.

Of course, they say change the tranny fluid every 90k miles. I've already done it a few times....
front diff too.



jeff
 

Last edited by jcb-memphis; 08-12-2009 at 11:00 PM.
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Old 08-12-2009 | 10:59 PM
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Originally Posted by jcb-memphis
I'd just call Bob Varela there....PBOC president (track...racing, they have a Delara (sp?) prototype in their shop...etc., Cup car shop....).

They have a tire to the track option for people, etc. I think my price included labor and belt...and th alternator installed. I think the belt is a 60k service item.... I want to say Pompano Beach....

JB
+1 rep. thanks. I have used bob in the past while servicing a gt2.I was very pleased with my service. Hopefully he can know this one out for me.

Originally Posted by smistry007
I changed my alternator about a year ago. Here is my write up:

https://www.6speedonline.com/forums/996-turbo-gt2/119698-alternator-diy-remove-replace.html
thank you so much. +1 rep for you!

Originally Posted by VAGscum
I thought this car had a chain, not a timing belt? Do you mean accessory belt?
so did i.... thats why i was caught off-guard by that.
 
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Old 08-12-2009 | 11:06 PM
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Fixed. Sorry guys. Been a long day.

JB
 
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Old 08-13-2009 | 12:13 AM
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I just did my alternator a few months ago. Pretty easy to get to. Took about an hour with some experienced help... Not too bad of a job. Mine only had 40k on it...
 
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Old 08-13-2009 | 12:16 AM
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What is the volt meter reading when your driving it?
 
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Old 08-13-2009 | 08:32 AM
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Originally Posted by Soundeffects
What is the volt meter reading when your driving it?
just started last night. Under 12 volts and falls until the battery dies. Dies faster with city driving vs. highway driving. Thats why i was hoping it was a belt or tensioner vs. an alternator, but we'll see today.. Normally, I think it was between 12 and 14 IIRC.
 
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Old 08-13-2009 | 09:54 AM
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04 996 TT Cab. Mine failed at 21,000 miles with the symptoms you've described. Had it replaced by dealer under CPO. Gauge back to 13.8 or so and no further problems.
 


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