14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDifficult to nearly impossible to start these days...
Leading reported evidence
Check evap valves
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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
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Difficult to nearly impossible to start these days...
Read full discussion summary
Leading evidence: 'Check evap valves' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check evap valves' (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.
Suggestion
You'll need to pull the generator to check the lines behind it.
Difficult to nearly impossible to start these days...
Replace crank position sensor
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
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Difficult to nearly impossible to start these days...
Run taken
Suggestion or failed attempt
No successful repair reported for this finding.
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Unsuccessful attempts
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Discussions
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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.
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Suggestion · Original poster
Wheel back on, car lowered, and test drive/gas run taken - with a few intermediate stops along the way.
Difficult to nearly impossible to start these days...
Test drive/gas
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
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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.
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
Wheel back on, car lowered, and test drive/gas run taken - with a few intermediate stops along the way.
Difficult to nearly impossible to start these days...
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.
14 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Hi guys. My 138,000+ mile 996 has recently developed a starting issue when warm. It'll crank just fine, but not fire. I can't really smell fuel in the exhaust, but I'm not sure if it's a spark or fuel delivery issue (in the old days, that would have been an easy diagnosis, but not any more). The first few times it happened, I was able to start it after maybe 5-8 minutes. And it would fire as if nothing were ever wrong with it. Once running, it behaves normally under all loads and to redline.
Today, I got stuck for about 15 minutes before she suddenly decided to fire - as if there was nothing wrong. My wife had already shown up to come get me from the parking lot when, during one last try, the car fired right up.
Not sure what might be going on here. Any ideas?
+1 on replacing the crank position sensor. Was causing similar issues on my wife's Boxster. I was able to change it without a lift on the garage floor by jacking up the passenger side. Kind of a pain in the butt, but definitely do-able.
Warm starting problems have also been associated with corroded electrical connections to the starter. You'll need to pull the generator to check the lines behind it. Do a few searches on hot start issues and you'll turn up some interesting pictures of the area of concern.
-Shawn
Don't forget to check the evap valves. A failing one at the fuel tank or in the engine compartment will cause it to crank but not fire. There is a TSB on this and it is not uncommon. I suspect that most of them will fail sometime after 100k miles.
Well, it seems that my problem is solved. I called my parts guy who had a new Bosch Crank Position Sensor delivered to his shop a few hours later - about $150. In the mean time, I jacked the back of the car up and put it on jackstands, removed the left rear wheel, located the sensor and single mounting screw, and removed the sensor without too much trouble. Once I got the new one, it was installed in a matter of minutes. I started the car - just to be sure all was well - and it fired RIGHT up, with more authority than I've heard in a while. Wheel back on, car lowered, and test drive/gas run taken - with a few intermediate stops along the way. It fired up immediately each time.
Not only that. it seems to have a smoother idle now and the power seems a bit more immediate and linear.
Thanks for all of your help guys.
Tom, thanks for the heads-up on a possible issue down the line.
