Hi
Xantia 1999TD1.9 Sensation
Only had the car for a few days, I habe noticed when i press the accelarator there is a high pitched whins as i increase and decrease. Is this normal? Never had a diesel before. Also I can pull away without touching the acclerator this seems wrong to me but the dealer says the diesel needs this extra. Seems a bit mucj to me
Any help appreciated.
Cheers
Whining engine Xantia
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Bodger,
Whining noise could be turbo air leak as suggested (although this is only usually apparent after a second or two as the boost pressure builds), but also the tensioners on the auxilliary drive belt, the Aircon compressor clutch, the alternator, the cambelt tensioners. Use a long screwdriver touched down onto the various parts, and press your ear against the end of the handle - makes a very effective stethoscope to help isolate noise.
As to being able to pull away at idle - this is normal - it's thanks to all that low down torque and the governor in the injection pump. You will find that the car will drive quite happily at idle in first, up even quite steep inclines without any input from the throttle (really annoys petrol drivers in traffic queues that one!). Normal idle once warmed up should be around 800 rpm.
Richard
Whining noise could be turbo air leak as suggested (although this is only usually apparent after a second or two as the boost pressure builds), but also the tensioners on the auxilliary drive belt, the Aircon compressor clutch, the alternator, the cambelt tensioners. Use a long screwdriver touched down onto the various parts, and press your ear against the end of the handle - makes a very effective stethoscope to help isolate noise.
As to being able to pull away at idle - this is normal - it's thanks to all that low down torque and the governor in the injection pump. You will find that the car will drive quite happily at idle in first, up even quite steep inclines without any input from the throttle (really annoys petrol drivers in traffic queues that one!). Normal idle once warmed up should be around 800 rpm.
Richard
When my 97 Xantia TD did this it turned out to be the inlet manifold gasket becoming brittle and starting to disintegrate.
It began as a slight whining noise when accelerating, and gradually worsened into something between a referee's whistle and an air raid warning. Pedestrians would turn round to find where the noise was coming from !
The annoying thing was, it was almost impossible to make it do it just from revving the engine, it had to be in gear and under load before it would make the noise.
Could be worth looking at if all else fails.
Nick
It began as a slight whining noise when accelerating, and gradually worsened into something between a referee's whistle and an air raid warning. Pedestrians would turn round to find where the noise was coming from !
The annoying thing was, it was almost impossible to make it do it just from revving the engine, it had to be in gear and under load before it would make the noise.
Could be worth looking at if all else fails.
Nick