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Problems starting and then very lumpy

mohamos

mohamos

New member
Hi!


Had a problem starting my 997.2. Car was sitting in the garage for a week on trickle charge, but when I tried to start it really struggled. When it did fire up, it was coughing then would stall out. After about three goes of doing that, it sounded very lumpy and then all of a sudden rectified itself. Fuelled to the brim and oil at the correct level. Someone said it was water contamination in the fuel but wanted to get another opinion.

Any thoughts what it could be?

Thanks, Sid
 
No warnings on the dash? As well as the coil packs, as mentioned above, could be a high pressure fuel pump intermittent problem. Only way to find out for sure is to get it on a diagnostic.
 
No warnings on the dash. Just tried it again after a long run and it starts but turn over is a lot long than usual.

Might run it down to the local independent to run a diagnostic on it.


Thanks!
 

Just to close this out. Diagnostics performed and it was the HPFP. Now booked in but expecting ££ for the pleasure. At least it will be back to it’s good ol’self once replaced.

Thanks for the information.

 
This seems to be a common failure on the gen 2 cars both gen 2 cars I had, a 4S and a turbo had to have the high-pressure fuel pump changed out I think from memory it was £850 for the for 4S and nearly £1800 for the turbo (both covered Porsche Warranty)
 
Yes Ian, there was a recall on all the 987.2 (and 997.2?) cars early on due to a faulty batch of HPFPs, but failures do occur on occasion. As you've already found out, it's an expensive component to replace. [:(]

Jeff
 
The HPFP failed big time on my turbo very early in it's life (which is obviously why I suspected it could be that) Mine wouldn't start though. Only 6 bar instead of around (from memory) 120 bar. Big job on the turbo with all the extra pipework that had to come out.

 
Shame I didn't see this earlier, as I would've told you likely the HPFP, mine went a few months back - exactly the same symptoms!

If you've covered under warranty, then you'll be fine. If you're not then I'm guessing they'll charge you a fair whack. Most places will take the exhaust off to replace it so its a fair amount of work. Though the Mobile Porsche Specialist who saw my car quotes it as a 3 hour job, I think without exhaust removal.

My solution though was to find the part as cheaply as I could, and do it myself. I'd intended to change the exhaust for a switchable / sports one soon anyway, as the car was way too quiet as standard, so I did that at the same time. Its all sorted now, running better than ever and sounding epic too!

 
Thanks Jonathan!

I have been quoted two hours labour by an Indy and the part £690 from Porsche. Unfortunately, warranty expired in March (typical) so I will have to stump up the cash myself.

Cheers for the info though.

Sid




 
mohamos said:
Thanks Jonathan!

I have been quoted two hours labour by an Indy and the part £690 from Porsche. Unfortunately, warranty expired in March (typical) so I will have to stump up the cash myself.

Cheers for the info though.

Sid
Click to expand...

Hi Sid,

No worries. And typical about the warranty!

What you've been quoted sounds pretty reasonable to me, so that's good. I hope it all gets sorted out soon.

Cheers,

Jonathan
 
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