i think i have found the problem? i think the noise is eminating from the rear passenger door as when my wife pressed her hand on the wood trim, the rattle/creak stopped. The wood trim does not seem lose? so how can i sort this problem out?

Recently I had exactly the same problem with my 1999 'T' 5 door LX model, with the sunroof.

At first, I thought it was a direct problem related to the sunroof, possibly one of the seals. I have since investigated further, discovering that the aerial is poorly welded and I am yet to find a root of the problem.

Even the rip-off merchants at my local Peugeot garage were mystified so investigations have become more home-made - today discovering that one of the drains in the sunroof was blocked, clearing it out with some curtain cable to find grime/decomposed leaves/general muck blocking it, fixing this by pouring some boiling water through. The drain is now efficient.

My findings have led to suggest that this waterfall problem are due to a build up of rainwater - the drain had obviously blocked up some time ago with the car's previous owner because there is a lot of green mould around the left side of the sunroof seal.

In theory, if the water is no longer collecting in the sunroof reservoir, it shouldn't seep through the remote central locking receiver.

I opened up the sunroof switch part on the roof to find no daylight, the bit with the 10mm screws.

I'm hoping this should do the job for now, the idea of replacing the aerial seems at the moment expensive but I shall do so if the problem persists.

Hope this helps anyone with the same problem in the future.

if it has a fuel pressure issue it should put the eml light on, i have changed a few of these (pumps) plus pressure reg/sensor but always has the light on, possible air leak making it run lean, it would still run lean at higher revs but less noticable !

To answer your [thankfully!] more limited question properly, you need to obtain the performance map for your engine. Good luck!

As an example, see;

www.eng-tips.com/viewthread.cfm?qid=144109&page=9


There's a lot going on on this graph, so, bit by bit;

The x axis, reading from left to right is engine speed in rpm

The y axis is in mean effective pressure - which is proportional to torque

The thick blue line represents the engines maximum mean effective pressure at that speed, i.e. wide open throttle, and as such, is just a scaled torque curve for the engine.

The thin blue lines are contours of equal brake specific fuel consumption, in g/kWh - the engine is most efficient near the "centre of the onion"

The thin black curves, with one highlighted in red are curves of constant power. The dots on the red line indicate where there are gears available. In this example, at the road speed where the drag is 30 kW, you could be in one gear running at 2000rpm, and 260g/kWh, or running at 4000 rpm and 320 g/kWh - as these lie on a line of constant power, they are directly proportional to the mass of fuel burnt in a given time.

Now, at any given constant road speed, your car needs a given amount of power to overcome the various forms of drag, so you would need to select the gear that places you closest to the "centre of the onion".

Note that the centre of the onion is just below the engine speed for maximum torque, and that it isn't at low engine loads.

But why would you let an 18 year old test drive a car like that? It doesn't say the owner was threatened or anything so I assume he just let the guy drive off in it!