darren44

New Member

• Dec 20, 2012

• #1

good evening,

having read numerous posts and not being any the wiser i wonder if you good people can help me,
i have a 98 dse auto with 91,000 on the clock and it runs quite well for a heavy old beast,it accelerates ok but when i get to around 50 mph and in top gear it doesn't seem to pull,i have around a inch of travel in the throttle pedal with nothing happening.
if i put my foot right down then it drops a gear and pulls away but is revving its nuts off!
i have only had her for about 2 weeks and just serviced her,problem was there before the service!
i have disconnected the egr but that hasnt made any difference,
any help or ideas would be much appreciated

many thanks
Darren

 

rodntod

Active Member

• Dec 20, 2012

• #2

When the toque converter locks up around 50 there is not a lot of power until you drop a gear and the turbo kicks in. they are a little sluggish unless you prod them firmly,and have a very long travel on the throttle pedal to suit off road users.Stamp on them and they can get along nicely

 

darren44

New Member

• Dec 20, 2012

• #3

ah ha nothing to worry about then!!

many thanks rodntod

 

Saint.V8

Dyed-in-the-wool 100% RR Junkie

Full Member

• Dec 21, 2012

• #4

Does she pull well up to that point or is it a little lack lustre getting there??

Could be worth looking at the small plastic pipe from under the manifold to the MAP sensor on the top of the fuel filter....sometimes these get blocked or split causing a drop in power.

 

stjohnsmythe

Active Member

• Dec 21, 2012

• #5

I thought 50 mph was the top speed of a diesel P38? :behindsofa:

 

wammers

No longer with us, RIP

Donater

• Dec 21, 2012

• #6

stjohnsmythe said:

I thought 50 mph was the top speed of a diesel P38? :behindsofa:

Click to expand...

I believe the petrols will do over 60 on the back of a recovery truck.

 

Datatek

Well-Known Member

• Dec 21, 2012

• #7

wammers said:

I believe the petrols will do over 60 without overheating or slipping a liner on the back of a recovery truck.

Click to expand...

Edited for accuracy

 

darren44

New Member

• Dec 22, 2012

• #8

i have a yamahe R1 that does nearly 110mph in first gear so everything seems slow getting to 50 mph compared to that

it dont seem to bad getting there as it is a heavy old girl but i will check out the pipe coming from the manifold to the map sensor.

thanks
Darren

 

wammers

No longer with us, RIP

Donater

• Dec 22, 2012

• #9

darren44 said:

i have a yamahe R1 that does nearly 110mph in first gear so everything seems slow getting to 50 mph compared to that

it dont seem to bad getting there as it is a heavy old girl but i will check out the pipe coming from the manifold to the map sensor.

thanks
Darren

Click to expand...

You of course found that out on a track day?

 

darren44

New Member

• Dec 23, 2012

• #10

wammers said:

You of course found that out on a track day?

Click to expand...

of course i did