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Just picked up a 2003 cayenne s for the wife. it is at 90,000 km and in need of regular service (rotors/pads/oil/filters/plugs/coils etc)

Just last week, it stalled on the wife. It will start and run for 8-10 seconds, then sputter and stall.

Has anyone experienced this. we are thinking fuel pumps - any other input would be greatly appreciated

Thanks - Brent - kelown aBC Canada

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Probably one of the two fuel pumps have a problem. The used system is not as simple as that, in the electric box under the engine hood are two relays and two fuses, one for each pump. Under the chassis on the left rear side is the electr.connector to the pumps, some have to much play inside, and the pins will burn and have a bad contact. The pumps are accessible under the rear seats left and right side. I will try to give a short explanation, if you open the car with the remote and take the door handle to open the door, pump 1 gives a pre load. Starting the engine pump 1 and pump 2 are working, after 10 sec. pump 1 stops and the engine is running on pump 2 ( conditions - car horizontal position and fuel tank approx. 15 liter ). If you have a warranty go to a OPC, if not try to get a technical bulletin.

Success.

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Probably one of the two fuel pumps have a problem. The used system is not as simple as that, in the electric box under the engine hood are two relays and two fuses, one for each pump. Under the chassis on the left rear side is the electr.connector to the pumps, some have to much play inside, and the pins will burn and have a bad contact. The pumps are accessible under the rear seats left and right side. I will try to give a short explanation, if you open the car with the remote and take the door handle to open the door, pump 1 gives a pre load. Starting the engine pump 1 and pump 2 are working, after 10 sec. pump 1 stops and the engine is running on pump 2 ( conditions - car horizontal position and fuel tank approx. 15 liter ). If you have a warranty go to a OPC, if not try to get a technical bulletin.

Success.

RFM - Thanks for the help in finding connectors etc. Turns out the fuel level sender/sensor was buggered - we were out of gas!!

Brent

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