Driving issue at 3000 rpm

[mcbit500]

Mine never stopped but I had a very precarious limp home, in your situation I would have done the same. Mine was my DD for a 170 mile round trip commute, over 4k miles a month and I intended to keep the car for some time so replacing both was a no brainer as far as i was concerned.

[ekstroemtj]

I was told by dealer that pumps should be replaced in pairs but most people don't due to cost

You see it depends with whom you are talking. My mechanic didnt give me this advice. Even they couldnt believe that my problems coming from fuel pump. I needed to push them to change the second pump. Anyway. I payed 1280 euro for 2 pumps, filter and labour. At least i am very happy now about the cars performance.

[mpronto]

Hi Eks, I too resolved my issue, also by chance!, my mechanic changed my water pipes(common problem), and returned the car to me but there was a small leak so I sent the car back and he check everything and managed to clear up the water pipe issue, when I went to pick up the car, he mentions to me that he fixed a small pipe that leads to the intake (under the plastic V8 cover), that had a crack in it. After picking up the car, and testing it for any water leaks I noticed that the spluttering problem had completely gone!!

So in my case, it seems like the cracked airpipe that goes to the intake after the MAF sensors was the culprit, the car now is totally different, idols smoothly and responds much better, and goes into the redline without hesitation!! :-)

[ekstroemtj]

Great Great. Happy that the problem is solved.

In your case it wasnt that expensive. Lucky you.

All this tubes are a major problem too.

What i found out now after 3 years of cayenne driving.... The most important is to have a real specialist who understand this car. Otherwise you get mad .

[mudman2]

lol very true

[ekstroemtj]

The car is again in the shop:-(

Again PSM Workshop. I get craaaaaazy