7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDecklid purge fan not working
Leading reported evidence
Run last two days trying
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.
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Performed · outcome unconfirmed · Original poster
Ironically, after the tests I ran the last two days trying to get the fan to run, I got home this afternoon, parked in my garage and the purge fan finally came on.
Leading evidence: 'Run last two days trying' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace fan' (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 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.
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
- Running 12v from the battery via jumper cables, I unplugged the decklid fan connector and put 12v (measured with multimeter) directly to the fan terminals.
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.
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
This made me wonder why my purge fan wouldn't be running while stopped in traffic or at least when I get home and park to vent the engine bay.
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
- Running 12v from the battery via jumper cables, I unplugged the decklid fan connector and put 12v (measured with multimeter) directly to the fan terminals.
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
Ironically, after the tests I ran the last two days trying to get the fan to run, I got home this afternoon, parked in my garage and the purge fan finally came on.
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.
7 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I noticed that my decklid purge fan has not come on at all this year. To test it, I have performed the following:
- With the key in the ignition turned to on (car not running), I unplugged the engine compartment temp sensor. Fan did not come on after waiting 2 minutes.
- Running 12v from the battery via jumper cables, I unplugged the decklid fan connector and put 12v (measured with multimeter) directly to the fan terminals. Fan did not come on.
Time to replace the fan? Anything other thoughts?
I�d never seen mine run in two years of ownership but I recently bought a Durametric and was able to toggle it on/off with that. Now I know the car is able to command it to run. Next step is to confirm the engine temp sensor is working correctly.
I'm not really sure how useful the rear fan actually is. Unless you live somewhere super hot it only comes on at a very high temperature.
I'm pretty sure you could remove it and likely never know the difference!
It gets plenty hot here in DFW during the summer. I dealt with a leaky coolant reservoir last summer and when I saw the temp gauge in my car climbing again this summer, I got nervous more issues were on the way. I've been watching the coolant temp all summer on the AC display and it is often 100-105C while driving in traffic. This made me wonder why my purge fan wouldn't be running while stopped in traffic or at least when I get home and park to vent the engine bay.
Ironically, after the tests I ran the last two days trying to get the fan to run, I got home this afternoon, parked in my garage and the purge fan finally came on. I assume it had to do with me messing with the harness, tapping on the fan housing, manually spinning the blades by hand, etc. Since it was 20 degrees cooler today than it has been and I was returning from a short drive across town.
I was not aware of a switch in the latch. Does this mean the purge fan will not operate with the rear open? Should I repeat the 12v test and this time move the latch so that the car thinks the rear is closed?
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