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Problem with the fan hack

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHProblem with the fan hack

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Replace of them

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Suggestion · Original poster

I tried switching the relays but I only have one extra so I cannot change both of them.

Problem with the fan hack
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Leading evidence: 'Replace of them' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace of them' (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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Replace of them

No successful repair reported for this finding.

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Reported fixes
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Unsuccessful attempts
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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 tried switching the relays but I only have one extra so I cannot change both of them.

Problem with the fan hack
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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.

3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

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Generation: 20261027T091508Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have the high-speed fan hack on my �99 996. The wiring splits and connects to both pin 85�s on two relays (for those if you who are familiar with this.) The problem started today. The car ignition won�t turn on without that fan switch on-and only one fan is working now when I switch it on. Cases: The switch light comes on and only one fan works. If I leave it off and try to start the car, everything lights up but the ignition won�t fire until I turn the switch on. When I flip the switch, the car starts, but the one fan turns off, I have to switch the fan switch on and off again for the one fan to kick on. I tried switching the relays but I only have one extra so I cannot change both of them. I�m kinda stumped. At one point today I had a different switch I was using and the wiring got real hot all of the sudden so I quickly disconnect it. Maybe I fried the wires? What do you guys think?

POST 2Original post

I would imagine something is shorted to ground. I would remove the entire hack, inspect and replace if u still need it.

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 19569597

given the car starts an drives when I close the loop (turning the switch on,) its most likely exactly what you�re saying. A bad ground or something.

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