Sluggish 300tdi

Hi,

My 96 disco 300tdi manual is feeling very sluggish again.

It was very sluggish a while ago and someone gave me some "engine cleaner"
spray to make it faster (which doesn't work incidentally!!) which you spray
into the air inlet after the filter while revving the engine. I noticed
that it was actually coming out of one of the hoses and going all over the
show. I tracked the hose down to the be one to the intercooler radiated
which had a gaping hole in it. I replaced the hose and things were better
for a while.

However, it's going really slow again now (0-60 takes about 30secs). I've
replaced all the filters including fuel and changed the oil. Not much
difference. On a straight motorway, it struggles to get past 70mph with my
foot hard on the floor, although after time it will make it to about 88ish.

Occassionally it seems to be quite fast at accelerating, but minutes later
it can be slow again. It seems to be faster for about the first minute or
so after a cold start in the morning - very strange!!

Anybody have any ideas what might be causing this? A clogged intercooler
radiator? Having to floor out the car just to accelerate to 30mph at an
acceptable speed is keeping my fuel economy in the low 20s!

I know someone with a 300tdi auto, and compared to mine his is like a 911!

Richard Wilkinson <[email protected]> uttered summat worrerz funny
about:
> Hi,
>
> My 96 disco 300tdi manual is feeling very sluggish again.

Check all the hoses first then start worrying about the hardware.

Lee D

Richard Hi,

do you hear the engine whistle more than it used to do when it was
performing well?

If yes then most probably you have another ruptured or dislocated hose from
your turbocharger to the intercooler or from the intercooler to the intake
manifold.

It would be nice to try and clean your intercooler while checking the hoses.

Sometimes the hoses appear to be OK when you visualy inspect them but when
you remove and look carefully at them you will see that they are ruptured
inside or may have a well hidden hole which only opens when the system gets
pressurised.

How many miles does your engine have on its clock?

Take care
Pantelis

"Richard Wilkinson" <[email protected]> wrote in message
news:[email protected]...
> Hi,
>
> My 96 disco 300tdi manual is feeling very sluggish again.
>
> It was very sluggish a while ago and someone gave me some "engine cleaner"
> spray to make it faster (which doesn't work incidentally!!) which you
spray
> into the air inlet after the filter while revving the engine. I noticed
> that it was actually coming out of one of the hoses and going all over the
> show. I tracked the hose down to the be one to the intercooler radiated
> which had a gaping hole in it. I replaced the hose and things were
better
> for a while.
>
> However, it's going really slow again now (0-60 takes about 30secs). I've
> replaced all the filters including fuel and changed the oil. Not much
> difference. On a straight motorway, it struggles to get past 70mph with
my
> foot hard on the floor, although after time it will make it to about
88ish.
>
> Occassionally it seems to be quite fast at accelerating, but minutes later
> it can be slow again. It seems to be faster for about the first minute or
> so after a cold start in the morning - very strange!!
>
> Anybody have any ideas what might be causing this? A clogged intercooler
> radiator? Having to floor out the car just to accelerate to 30mph at an
> acceptable speed is keeping my fuel economy in the low 20s!
>
> I know someone with a 300tdi auto, and compared to mine his is like a 911!
>
>

> My 96 disco 300tdi manual is feeling very sluggish again.
>
> It was very sluggish a while ago and someone gave me some "engine cleaner"
> spray to make it faster (which doesn't work incidentally!!) which you
> spray into the air inlet after the filter while revving the engine. I
> noticed that it was actually coming out of one of the hoses and going all
> over the show. I tracked the hose down to the be one to the intercooler
> radiated which had a gaping hole in it. I replaced the hose and things
> were better for a while.
>
> However, it's going really slow again now (0-60 takes about 30secs). I've
> replaced all the filters including fuel and changed the oil. Not much
> difference. On a straight motorway, it struggles to get past 70mph with
> my foot hard on the floor, although after time it will make it to about
> 88ish.
>
> Occassionally it seems to be quite fast at accelerating, but minutes later
> it can be slow again. It seems to be faster for about the first minute or
> so after a cold start in the morning - very strange!!
>
> Anybody have any ideas what might be causing this? A clogged intercooler
> radiator? Having to floor out the car just to accelerate to 30mph at an
> acceptable speed is keeping my fuel economy in the low 20s!
>
Does it smoke at all?

There should be a small pipe (1/4" or so) coming from the inlet manifold to
the top of the injection pump, check that this is in place, and not blocked
or split.

Also try removing the stop solenoid from the injection pump,. and check for
any splinters of metal round the bottom of the plunger, if there is, that is
a sign that the injection pump is about to die, which is not particularly
uncommon with the Bosch pump.

On or around Wed, 18 Oct 2006 23:04:48 +0100, "Richard Wilkinson"
<[email protected]> enlightened us thusly:

>Hi,
>

blocked cat in the exhaust could cause this. in the UK, you can replace the
front pipe with a non-cat one...
--
Austin Shackles. www.ddol-las.net my opinions are just that
"There are three sorts of people in the world - those who can count,
and those who can't" (Anon)

>
> blocked cat in the exhaust could cause this. in the UK, you can replace
the
> front pipe with a non-cat one...


And on my 97 Defender it made quite a difference.
John H

It is more likely to be the fuel lift pump err5057
Try opening the bleed screw and pumping the primer leaver
if this works OK but you have a lot of air in the filter look at the
sedimenter on the drivers side rear chassis leg and failing that look
for rotten pipe work where it leaves the tank, this can be seen by
removing the boot carpet and removing the inspection cover, be
prepaired to find the boot floor rotten though

Anthony

I do notice a slight whooshing noise after about 2000rpm although its not as
bad as it was with the old hose

I'll have a thorough look around though. I only replaced the top half of
the hose before, the original (I presume) bottom half connecting to the
radiator seems very flimsy. Might replace that anyway.

Its done 111,000.

Thanks


"Pantelis Giamarellos" <[email protected]> wrote in message
news:[email protected]...
> Richard Hi,
>
> do you hear the engine whistle more than it used to do when it was
> performing well?
>
> If yes then most probably you have another ruptured or dislocated hose
> from
> your turbocharger to the intercooler or from the intercooler to the intake
> manifold.
>
> It would be nice to try and clean your intercooler while checking the
> hoses.
>
> Sometimes the hoses appear to be OK when you visualy inspect them but when
> you remove and look carefully at them you will see that they are ruptured
> inside or may have a well hidden hole which only opens when the system
> gets
> pressurised.
>
> How many miles does your engine have on its clock?
>
> Take care
> Pantelis
>
> "Richard Wilkinson" <[email protected]> wrote in message
> news:[email protected]...
>> Hi,
>>
>> My 96 disco 300tdi manual is feeling very sluggish again.
>>
>> It was very sluggish a while ago and someone gave me some "engine
>> cleaner"
>> spray to make it faster (which doesn't work incidentally!!) which you
> spray
>> into the air inlet after the filter while revving the engine. I noticed
>> that it was actually coming out of one of the hoses and going all over
>> the
>> show. I tracked the hose down to the be one to the intercooler radiated
>> which had a gaping hole in it. I replaced the hose and things were
> better
>> for a while.
>>
>> However, it's going really slow again now (0-60 takes about 30secs).
>> I've
>> replaced all the filters including fuel and changed the oil. Not much
>> difference. On a straight motorway, it struggles to get past 70mph with
> my
>> foot hard on the floor, although after time it will make it to about
> 88ish.
>>
>> Occassionally it seems to be quite fast at accelerating, but minutes
>> later
>> it can be slow again. It seems to be faster for about the first minute
>> or
>> so after a cold start in the morning - very strange!!
>>
>> Anybody have any ideas what might be causing this? A clogged intercooler
>> radiator? Having to floor out the car just to accelerate to 30mph at an
>> acceptable speed is keeping my fuel economy in the low 20s!
>>
>> I know someone with a 300tdi auto, and compared to mine his is like a
>> 911!
>>
>>
>
>

In message <[email protected]>
"Richard Wilkinson" <[email protected]> wrote:

> I do notice a slight whooshing noise after about 2000rpm although its not as
> bad as it was with the old hose
>
> I'll have a thorough look around though. I only replaced the top half of
> the hose before, the original (I presume) bottom half connecting to the
> radiator seems very flimsy. Might replace that anyway.
>
> Its done 111,000.
>
> Thanks
>

The "elbow" under the turbo is very often the culprit, but the
little straight "joiner" at the intercooler end can also join
in the fun while looking all innocent.

Richard

>
> "Pantelis Giamarellos" <[email protected]> wrote in message
> news:[email protected]...
> > Richard Hi,
> >
> > do you hear the engine whistle more than it used to do when it was
> > performing well?
> >
> > If yes then most probably you have another ruptured or dislocated hose
> > from
> > your turbocharger to the intercooler or from the intercooler to the intake
> > manifold.
> >
> > It would be nice to try and clean your intercooler while checking the
> > hoses.
> >
> > Sometimes the hoses appear to be OK when you visualy inspect them but when
> > you remove and look carefully at them you will see that they are ruptured
> > inside or may have a well hidden hole which only opens when the system
> > gets
> > pressurised.
> >
> > How many miles does your engine have on its clock?
> >
> > Take care
> > Pantelis
> >
> > "Richard Wilkinson" <[email protected]> wrote in message
> > news:[email protected]...
> >> Hi,
> >>
> >> My 96 disco 300tdi manual is feeling very sluggish again.
> >>
> >> It was very sluggish a while ago and someone gave me some "engine
> >> cleaner"
> >> spray to make it faster (which doesn't work incidentally!!) which you
> > spray
> >> into the air inlet after the filter while revving the engine. I noticed
> >> that it was actually coming out of one of the hoses and going all over
> >> the
> >> show. I tracked the hose down to the be one to the intercooler radiated
> >> which had a gaping hole in it. I replaced the hose and things were
> > better
> >> for a while.
> >>
> >> However, it's going really slow again now (0-60 takes about 30secs).
> >> I've
> >> replaced all the filters including fuel and changed the oil. Not much
> >> difference. On a straight motorway, it struggles to get past 70mph with
> > my
> >> foot hard on the floor, although after time it will make it to about
> > 88ish.
> >>
> >> Occassionally it seems to be quite fast at accelerating, but minutes
> >> later
> >> it can be slow again. It seems to be faster for about the first minute
> >> or
> >> so after a cold start in the morning - very strange!!
> >>
> >> Anybody have any ideas what might be causing this? A clogged intercooler
> >> radiator? Having to floor out the car just to accelerate to 30mph at an
> >> acceptable speed is keeping my fuel economy in the low 20s!
> >>
> >> I know someone with a 300tdi auto, and compared to mine his is like a
> >> 911!
> >>
> >>
> >
> >
>
>

--
www.beamends-lrspares.co.uk [email protected]
www.radioparadise.com - Good Music, No Vine
Lib Dems - Townies keeping comedy alive

On or around Thu, 19 Oct 2006 13:05:00 +0100, "Richard Wilkinson"
<[email protected]> enlightened us thusly:

>I do notice a slight whooshing noise after about 2000rpm although its not as
>bad as it was with the old hose
>
>I'll have a thorough look around though. I only replaced the top half of
>the hose before, the original (I presume) bottom half connecting to the
>radiator seems very flimsy. Might replace that anyway.

Try revving it and watching the hoses. If you're getting boost pressure,
you should see the rubber bits get fatter. Also, with the bonnet up, you
may be able to hear any blowing that shouldn't be happening.

Oh yeah, another possibility: EGR stuck open. Best thing to do with that
is to undo the little 2-bolt joint in the pipe, add a 2p piece, and bolt it
up again... The 2p fits nicely across the pipe and prevents exhaust gases
doing things they don't have to.

Since the EGR is normally only open on over-run (when the fecker's working
right), it won't fail the test as a result.
--
Austin Shackles. www.ddol-las.net my opinions are just that
If all be true that I do think, There are five reasons we should drink;
Good wine, a friend, or being dry, Or lest we should be by and by;
Or any other reason why. - Henry Aldrich (1647 - 1710)

Richard Wilkinson wrote:

|| I know someone with a 300tdi auto, and compared to mine his is like
|| a 911!

Then you *have* got problems!

--
Rich
==============================

Take out the obvious to email me.