[modern] XJR6 driving trouble

Hi All !

Just a quick mail cause i’m dying under my work load…
My XJR makes me crazy. When starting from 0mph, when i hit the throttle, the
car start but is very hesistant, not much power, very frightening…it
accelerate and stop as if i was pumping on the throttle pedal.
Don’t know if it’s the traction control throttle motor or the trans… The
trans oil level is ok
no warning light on on the dashboard.
When i’m on the highway, it’s fine, no more problem, i can press the
throttle pedal without any trouble and feel the power
A bit strange…

If someone is able to help me, i’d be happy !

cheers
Nicolas
Paris, france

Nicolas - certainly a strange one. Does it change with Traction Control
turned off? Can you see if the throttle cable is binding anywhere ( need to
look from underneath to check around throttle body area ). Is it different
with the car warm - there is a known tranmission problem with getting 1st
gear when cold. Mine has a minor manifestation of this, but it is only a few
seconds delay in getting 1st on moving off for the first time, so no major
issue.

I think you may have found a new problem here, so let us know how you get
on.

Cheers - Jez> -----Original Message-----

From: Nicolas Huber [mailto:Nicolas.Huber@ctp.com]
Sent: 09 October 2001 12:59
To: modern@jag-lovers.org
Subject: [modern] XJR6 driving trouble…

Hi All !

Just a quick mail cause i’m dying under my work load…
My XJR makes me crazy. When starting from 0mph, when i hit
the throttle, the
car start but is very hesistant, not much power, very
frightening…it
accelerate and stop as if i was pumping on the throttle pedal.
Don’t know if it’s the traction control throttle motor or the
trans… The
trans oil level is ok
no warning light on on the dashboard.
When i’m on the highway, it’s fine, no more problem, i can press the
throttle pedal without any trouble and feel the power
A bit strange…

If someone is able to help me, i’d be happy !

cheers
Nicolas
Paris, france

My 95 VDP had a problem with the traction control. When accelerating
the gas pedal would “kick back” at my foot similar to what ABS does
to he brake pedal when the ABS detect skidding.

It turned out to be having the wrong size tires on the rear and the
correct size tires on the front. The PO did not realize that she
was sold the wrong size tires.

The way it was explained to me is that the sensors that detect wheel
slip see the difference in speed between the front and rear tires and
wrongly conclude that the wheels are slipping.

Brian-----Original Message-----
From: owner-modern@jag-lovers.org [mailto:owner-modern@jag-lovers.org]On
Behalf Of Paul Stow
Sent: Wednesday, October 10, 2001 12:46 AM
To: ‘Nicolas Huber’; modern@jag-lovers.org
Subject: RE: [modern] XJR6 driving trouble…

Nicolas - certainly a strange one. Does it change with Traction Control
turned off? Can you see if the throttle cable is binding anywhere ( need to
look from underneath to check around throttle body area ). Is it different
with the car warm - there is a known tranmission problem with getting 1st
gear when cold. Mine has a minor manifestation of this, but it is only a few
seconds delay in getting 1st on moving off for the first time, so no major
issue.

I think you may have found a new problem here, so let us know how you get
on.

Cheers - Jez

-----Original Message-----
From: Nicolas Huber [mailto:Nicolas.Huber@ctp.com]
Sent: 09 October 2001 12:59
To: modern@jag-lovers.org
Subject: [modern] XJR6 driving trouble…

Hi All !

Just a quick mail cause i’m dying under my work load…
My XJR makes me crazy. When starting from 0mph, when i hit
the throttle, the
car start but is very hesistant, not much power, very
frightening…it
accelerate and stop as if i was pumping on the throttle pedal.
Don’t know if it’s the traction control throttle motor or the
trans… The
trans oil level is ok
no warning light on on the dashboard.
When i’m on the highway, it’s fine, no more problem, i can press the
throttle pedal without any trouble and feel the power
A bit strange…

If someone is able to help me, i’d be happy !

cheers
Nicolas
Paris, france

Paul Stow wrote:
Nicolas - certainly a strange one. Does it change with Traction Control
turned off? Can you see if the throttle cable is binding anywhere ( need to
look from underneath to check around throttle body area ). Is it different
with the car warm - there is a known tranmission problem with getting 1st
gear when cold. Mine has a minor manifestation of this, but it is only a few
seconds delay in getting 1st on moving off for the first time, so no major
issue.

I think you may have found a new problem here, so let us know how you get
on.

Well… it seems to be worst with the TC off. The temp seems not to be
linked to the problem
as i tried both cold and warm
I really don’t know what can be the trouble… I’ll check the throttle
cable, but i did nothing to the car so i wonder what can be the problem…
The only real result is that i cannot overtake any car with such
problem…

Cheers
Nicolas

Nicolas,
This is a classic symptom of a Cracked Exhaust Manifold/s, you
need to remove the Heat Shield and take a look…the cracks are always
very visible…

By the way, these Manifolds have been cracking on a LOT of X300’s, just
in case you missed the thread of a couple of months ago…

Let us know what you find…

Peter, CA

Nicolas Huber wrote:>

Hi All !

Just a quick mail cause i’m dying under my work load…
My XJR makes me crazy. When starting from 0mph, when i hit the throttle, the
car start but is very hesistant, not much power, very frightening…it
accelerate and stop as if i was pumping on the throttle pedal.
Don’t know if it’s the traction control throttle motor or the trans… The
trans oil level is ok
no warning light on on the dashboard.
When i’m on the highway, it’s fine, no more problem, i can press the
throttle pedal without any trouble and feel the power
A bit strange…

If someone is able to help me, i’d be happy !

cheers
Nicolas
Paris, france