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Revs drop too low, engine cuts out - 2004 Cayenne Turbo S

Kayleigh White
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Kayleigh White Member

Kayleigh White

Posted
Posted

I started my Cayenne this afternoon and as I pulled away the engine cut out. Stopped the car, put it in park and tried to restart. It happened again, and again. 

 

The engine seems to idle for about 20 seconds before struggling and cutting out. No vibrations, just cuts out. I managed to drive 50 metres with intermittent stop-and-start, hoping it was just struggling to get fuel circulating, but then discovered water coming out of the exhaust.

 

I have an LPG conversion and when I switch to LPG the car idles fine, I just don't have enough LPG in the tank to drive it anywhere.

 

There are no electrical faults coming up so I'm guessing it's mechanical. My concern is that there is water in the fuel, after filling up with a full tank yesterday evening.

 

Having a chat with my mechanic tomorrow but he's not a Porsche expert, so I just wanted to gauge any ideas before delving further into the car. I won't be driving or towing it to the garage in fear of more possible contaminated fuel circulating.

 

Thanks in advance for any advice given!

Kayleigh

occb2 Member

occb2

Posted
Posted

Sounds more like a fuel pump issue. If your switching to different fuel and it runs fine it's the delivery of the first fuel that is the issue.

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