8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFuel Pump
Leading reported evidence
Install low temp thermostat, a spin
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.
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
My 02, C4s has bout 102k miles, I purchased the car with 98k miles and since have installed a low temp thermostat, a spin on filter adapter and a deep sump pan.
Leading evidence: 'Install low temp thermostat, a spin' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill tank' (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
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
My engine was replaced by Porsche under warranty in 2007 so it has the large IMS bearing, I removed its outer seal.
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.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
It was a pretty simple operation and I only replaced the pump.
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
Enough to fill the tank with premium and a six pack.
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
Is there a recommended Fuel pump brand that is prefer, any higher pressure/flow type that is recommended.
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
My 02, C4s has bout 102k miles, I purchased the car with 98k miles and since have installed a low temp thermostat, a spin on filter adapter and a deep sump pan.
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.
8 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: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
My 02, C4s has bout 102k miles, I purchased the car with 98k miles and since have installed a low temp thermostat, a spin on filter adapter and a deep sump pan. I have done these in order to reduce the likelihood of a catastrophic failure with the engine. My engine was replaced by Porsche under warranty in 2007 so it has the large IMS bearing, I removed its outer seal.
I do track the car at DE events, as well as driving it at least ones or twice a week.
My question is around Fuel Pump, reading some postings here it has become apparent to me that fuel pump failure is not a rare occurrence, furthermore it seems that these do not fail completely but instead start to provide lower that required fuel pressure to the engine causing a lean condition that can then cause other catastrophic failure, mostly during extended wide open throttle.
Is there a recommended Fuel pump brand that is prefer, any higher pressure/flow type that is recommended.
While in the tank are there other hoses, fittings, etc I should also replace, remember my car is C4S.
I have a 2000 C2, but recently replaced mine with a VDO fuel pump. So far so good. I got it from pelican at half the cost of the Porsche branded fuel pump. It was cheaper at Rock Auto, but they won't ship to CO because of taxes. It was a pretty simple operation and I only replaced the pump.
Usually its not a big deal to test your fuel pressure.. I do it regularly on my cars.. Haven't done the 996 yet,, but if its not easy to get at it will be when I'm done.
Thank you, will look into VDO pumps, another question. What are the "saddle" tanks the 4S supposed to have? Apparently there are plastic hoses from them to the pump. Does the new pump bring these? should they even be replaced?
Lately I've been buying a lot of stuff from
RM European
that was mentioned on this Board. They're in Littleton CO and most of the time they beat even AutohausAZ (my usual go to place) on price. I rarely buy from Pelican anymore because their prices are so high. I don't buy from Rock Auto because their website is a PITA and I feel like I should be using Netscape Navigator to view it.
Even better!
My last order from them was Beru ignition coils for the Cayenne.
$38.50 each from Pelican
$34.76 from AutohausAZ
$28.24 from RM European
So for 8 coils, it was a savings of $75.00 over Pelican. Enough to fill the tank with premium and a six pack.
This is a source reference. Confirm exact model applicability in the original material.
