5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHIntermittant Battery/Generator Warning - (New Alternator needed?)
Leading reported evidence
Replace battery
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
Went straight to parts store and replaced battery but much to my dismay, the warning still came on after a few minutes.
Intermittant Battery/Generator Warning - (New Alternator needed?)
Read full discussion summary
Leading evidence: 'Replace battery' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'alternator' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check these boards' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause · Original poster
If you're seeing 12's with a new battery, I would suspect the alternator.
Intermittant Battery/Generator Warning - (New Alternator needed?)
Check these boards
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I drove the car home and proceeded to check these boards for answers.
Intermittant Battery/Generator Warning - (New Alternator needed?)
Run perfect
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
Starting with lights, hi-beams, air conditioning at full blast, door open trunk and hood open (to turn lights on) and all seemed to be running perfect.
Intermittant Battery/Generator Warning - (New Alternator needed?)
Run temperature
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
No warning lights.....until it hit running temperature and then the cursed light turned on again, warning me about the Battery/Generator issue.
Intermittant Battery/Generator Warning - (New Alternator needed?)
Run perfect
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
Starting with lights, hi-beams, air conditioning at full blast, door open trunk and hood open (to turn lights on) and all seemed to be running perfect.
Intermittant Battery/Generator Warning - (New Alternator needed?)
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Greetings:
I have a 996 2002 C2 Cab. 20,000 miles.
Today, she started very slowly, then 10 mins later after refueling, she wouldn't fire up at all. A jump start got me going though in short order.
Went straight to parts store and replaced battery but much to my dismay, the warning still came on after a few minutes. I drove the car home and proceeded to check these boards for answers. I double checked the tightness of the battery terminal cables and all is secure and tight. There is no corrosion whatsoever.
The car did start up and I proceeded to put increasing loads on the voltage system. Starting with lights, hi-beams, air conditioning at full blast, door open trunk and hood open (to turn lights on) and all seemed to be running perfect. No warning lights.....until it hit running temperature and then the cursed light turned on again, warning me about the Battery/Generator issue.
So - I would have assumed if the Alternator/Generator was bad, it would be bad under heavy load. But it seemed to be charging over 12 volts until it got to normal operating temperature. It also held the loads of the accessories/lights very well (just under 12 volts).
Is there something going on more, or do I simply need a new alternator?
Lastly - I read some posts about $400-500 alternators here but whats wrong with buying a new one for $180 on eBay? Any suggestions on a new alternator supplier?
Thanks in advance!
My volt meter usually sits near the 14 or just slightly under it in normal use. If you're seeing 12's with a new battery, I would suspect the alternator.
My volt meter usually sits near the 14 or just slightly under it in normal use. If you're seeing 12's with a new battery, I would suspect the alternator.
Do you see 14v even with a full load applied?
I just went thru the same thing with my GT3. Your best bet is to remove it and have it rebuilt locally for about $150.
Re those eBay alternators, I tried that too. The sellers definition of "new" wasn't the same as Webster's. Also, you need to know what to buy, fixed pulley vs clutch, 120 Amp vs 150 Amp, etc.
This is a source reference. Confirm exact model applicability in the original material.
