When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
HP fuel pump? WTF? Is the HP for High Pressure? How many miles do you have? I did not know that was a failure point. I'm about to take the car on a 2k mile road trip to Tail of the Dragon and hoping NOT to break down in the mountains (que banjo music)
So our HPFP went at 20k miles on our 14 cayman I have seen several fail and we believe it comes from running the tank down too low on twisty roads. It appears to be a fairly common problem and spreads out over the entire Porsche sports car line. Each person I spoke with did admit the tank was below 1/4 when pushing the car hard prior to failure. Usually track driving. I am not sure if they designed it this way on purpose or if it was just being cheap but the seal is just pressed in without a circlip so it will easily pop out if scavenging and exceeds pressure is my best guess.
You can see the seal lifted on the pump on the left while still pressed in place on the new one on the right. I don't know if it possible to repair the seal but wasn't worth chancing it would pop out again. A circlip around the seal would prevent that but it might be done intentionally.
it comes from running the tank down too low on twisty roads. It appears to be a fairly common problem and spreads out over the entire Porsche sports car line. Each person I spoke with did admit the tank was below 1/4 when pushing the car hard prior to failure.
I don't know if that counts for statistics... To conclude that it is the cause we'd need another group of people who always drive with full tank on a straight roads and pump never fails. But. Most Porsche owners like curvy roads and fast driving.
Finally completed exchange of drooping headliner with new headliner from Porsche dealer at a cost of $1100. Previously trade to match agate grey material headliner material with no success. Biggest part of job is removing rear glass and reinstalling plastic panels to fit correctly. The match from Porsche was perfect. Perfect match
Last edited by sampietv; Yesterday at 12:32 PM.
Reason: Not completed
How long did the installation take you? How difficult/easy was it?
It takes a couple of hours. You have to update firmware and set parameters on how you want the key fob to work and then do wiring. There are two crimps to connect to power and then you have to reconfigure some pins. It is not difficult to do but requires working in a confined space underneath drivers seat. Mine already had the latest firmware installed and already set for the default settings..
07-25-2024, 08:29 AM
