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fan running on start up?

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10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHfan running on start up?

Leading reported evidence

Run during start up

Suggestion or failed attempt

No successful repair reported for this finding.

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Suggestion · Original poster

I hear the engine fan running during start up for a minute and shuts off after I get to driving...

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fan running on start up?
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Leading evidence: 'Run during start up' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run during start up' (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.

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1 matching discussions · 10 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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Run during start up

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

I hear the engine fan running during start up for a minute and shuts off after I get to driving...

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fan running on start up?
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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.

10 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: 20261026T155324Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

hey guys is this normal.. I hear the engine fan running during start up for a minute and shuts off after I get to driving... I have a '99 996 C2. In my 996 Turbo I know it comes on when the engine is too hot especially after I park right after a track session. Thoughts? Here's a light burnout pic (yes the exhaust tip on the right was off and now has been aligned). More pics: http://www.fmotorsports.com/main/ind...ewtopic&t=1763

POST 2Original post

Hey bud that is not the fan but the 2ndary air injection... An emissions things. Happens every time you start up cold and quits out pretty quick after you drive a few blocks.

POST 3 / ORIGINAL POSTEROriginal post

thanks Paul. I'm glad it's normal. So this thing is not present in 996 Turbos eh?

POST 5Original post

Quotes source post: 5526570

Yes, turbos have the same fan.

POST 6 / ORIGINAL POSTEROriginal post

ok.. but this "2ndary air injection" I've never heard come on after I start the 996 Turbo.

POST 7Original post

KJM3SMG, You 996 looks great. Its sits nice. What suspension mods did you do??

POST 8 / ORIGINAL POSTEROriginal post

Thanks I don't know I bought it that way... will have to look at the service / upgrades records in the stack of papers

POST 10 / ORIGINAL POSTEROriginal post

thanks Loren You really are helpful... I remember you gave me the instructions on installing a B&M Short Shifter when I had my Yellow Boxster S 5 years ago... http://www.karljay.com/BoxsterS/ http://www.karljay.com/BoxsterS/BandM_SSK_install.htm

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