620 SDi

Hi all

My 600 recently developed a problem but i'm not sure of the cause.

Its an R reg 2 litre turbo diesel.

I am experiencing loss of power about about 3000 rpm, it accelerates nicely upto that point and then just looses power all together. The car is also starting to struggle with motorway inclines.

I have changed the air and fuel filters thinking that those are probably the most likely culprits, but the problem still remains.

What would be the next (cheapest) path of investigation, injectors?

If anyone could shed some light, please post.

Thanks

Vertuas

Reply to
Vertuas
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On 22/12/2004 08:31:22, in alt.autos.rover, Vertuas licked his pencil and scribbled in message

The next cheapest thing would be to have a look around the turbo hoses, one may be split or loose. As the boost pressure rises it might be opening up a leak. If you are lucky new hose or clips might sort it out.

Reply to
M Pitt

hi M

Thanks for that bit of info, i will take a look around.

Kind Regards

Vertuas

Reply to
Vertuas

My V Reg 2 litre turbo diesel exhibited the very same symptoms. That turned out to be a split hose from intercooler to fuel injection system. The hose was around £25. Cheapest fault, and a possibility according to historical posts.... maybe a blockage of the air intake due to carrier bag or similar having been sucked up?

Good luck. Ian

Reply to
Ian Gaskell

Been there. Tried the hoses etc, fault was the mass air sensor going kaput. Symptoms are just no ooomph above 3000rpm, gradually getting worse as the sensor looses the plot. I did a post a while back on this issue.

I suspect a trip to a Rover dealer is in order.

PDH

Reply to
Paul Hubbard

Hi Ian,

my first thought was the air filter being bunged up, so i attacked that first with a new one! air intake is clear so its not that one!

thanks for the post

regards

Reply to
Vertuas

Hello Paul

This sounds exactly like what iam experiencing, it seems to loose all power at around 3000 rpm.

This sounds like a likely cause!

Bet they are not cheap either! :o((

Thanks for the post

Vertuas

Reply to
Vertuas

I've attached my original post from the 3rd of June 2004 below, see if the symptoms match.

A little while back I was in discussion over the lack of power on my Rover

25iLTD and I did say I would post details of how the issue was resolved.

I had made a few cursory checks over the weeks leading up to its mot. The turbo hoses were inspected as well as a replacement air filter fitted but to no avail. I then started to suspect that the map sensor may have something to do with the issue. Last week I took the car for its first mot + service at Caffyns Uckfield, a Rover dealer, and asked them to look at the power problem.

First of all, there is a software upgrade available for Rover based TDs and the car had this upgrade. The cause of the fault was traced to the map sensor, I had the feeling the car thought it was driving at high altitudes, hence the power loss. The garage described it as "driving in glue". The symptoms of a faulty map sensor are poor power, slow climbing of the rev counter ( 2 seconds or worse to 3000 rpm, it should normally rise almost instantaniously), no noticeable power available when over taking, poor to build up speed, your foot at the floorboard with no appreciable increase in revs and the feeling that you are driving around with four sumo wrestlers in the rear. You will get no fault light up on the dash with this type of fault and apparently failure of the map sensor is quite a common fault with this type of engine.

The effect of the new sensor was quite noticeable when getting away from traffic lights on an uphill gradient in first with the mid range accelleration boosted and instantanious responce from the engine. The car now drives better, and from memory, better than when I first obtained it. The words scalded and cat come to mind (or greasy ferret).

So, hats off to Caffyns Uckfield, for being on the ball and being very understanding.

PDH

Reply to
Paul Hubbard

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