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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH2004 Boxster S - Doesn’t Start!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported or suspected cause
weak "positive" ground in the engine compartment
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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Discussions that report identifying 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.
Reported cause
My problem turned out to be a weak "positive" ground in the engine compartment.
2004 Boxster S - Doesn’t Start!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'weak "positive" ground in the engine compartment' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'weak "positive" ground in the engine compartment' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check of your fuses first and foremost' (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 performed work without a confirmed outcome
1
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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.
Performed · outcome unconfirmed
In that scenario I had also replaced the fuel pump relay.
2004 Boxster S - Doesn’t Start!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check of your fuses first and foremost
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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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
2004 Boxster S - Doesn’t Start!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Clean nut
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
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Unsuccessful attempts
1
Discussions
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Suggestion
Use a screw driver to pop the box open and a 14 mm socket to remove and clean the nut.
2004 Boxster S - Doesn’t Start!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Disconnect battery
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
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.
2004 Boxster S - Doesn’t Start!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
986Forum: 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: 20261026T213932Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi Everyone
So today my 3.2l, 2004 Boxster S failed to start!
Drove around 40 miles in it no issues. Stopped and a friend house and then the car wouldn’t start. Started chugging for a little bit and cut out.
Called out the AA and they said that it May be the fuel pump and found no amps going to the fuse
so what would people suggest?
Relay? Fuel pump? Please help!
Check all of your fuses first and foremost. Redundant, yes, but best to clear the easiest options first.
If
the fuel pump is found to be fault, DO NOT replace it without replacing the sending unit as well - Porsche idiotically integrated the fuel filter into it in 2002.
I had this issue several years ago where I went through 2 brand new OE fuel pumps then discovered my filter was clogged. This, of course, was after having a no-start issue where it would crank (tach moved), but had no fuel at the rail. In that scenario I had also replaced the fuel pump relay.
My problem turned out to be a weak "positive" ground in the engine compartment. It was rusty, and if I wiggled the cable and turned the key the engine would start. Disconnect the battery. It is located in a black plastic box next to the power steering reservoir. Use a screw driver to pop the box open and a 14 mm socket to remove and clean the nut.
This was the fuel pump on this occasion - £200 for new part.
The car wont start again now, last time it tried to crank but this time not at all now
http://986forum.com/forums/boxster-general-discussions/76834-boxster-s-tiptonic-2004-will-not-start.html#post608267
My problem turned out to be a weak "positive" ground in the engine compartment. It was rusty, and if I wiggled the cable and turned the key the engine would start. Disconnect the battery. It is located in a black plastic box next to the power steering reservoir. Use a screw driver to pop the box open and a 14 mm socket to remove and clean the nut.
