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Robert, Vauxhall Technician
Category: Vauxhall
Satisfied Customers: 4531
Experience:  Fully qualified 19+yrs exp/self employed technician in the UK
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My vaxhall Astra van has a low whine when stationary As soon

Customer Question

Hi there, my vaxhall Astra van has a low whine when stationary
As soon as I take off noise goes. Any ideas ? 2002 plate 1.7 diseal
Submitted: 11 months ago.
Category: Vauxhall
Customer: replied 11 months ago.
Car serviced every year. Any garage I have taken van to can't locate it. Hear noise clearly in car. Not so easy to hear outside with bonnet open
Customer: replied 11 months ago.
General engine proformance is good 150,000 miles on clock
Expert:  Robert replied 11 months ago.


Does it change pitch or stop when you depress the clutch sitting stationary?

What about increasing the revs slowly stationary? any change...?

If fitted with Air-Con does it change at all when thats switched on or off?

What things have been carried out by the garage to try and track it down?

Customer: replied 11 months ago.
When revs above 2000 revs whine goes. No change in pitch. But getting a little louder. No air con fitted. I think noise there when you depress cluch approaching traffic lights or roundabout. As soon as revs above 1.5 / 2 000 reeves noise goes away
Customer: replied 11 months ago.
Not sure what garages did. New cam belt new tensioner as well.
Customer: replied 11 months ago.
As I say whine disappears above 1.5 / 2 reeves
Expert:  Robert replied 11 months ago.

Ok.. Have they run the engine for short moment without the auxillary belt on? that could if the noise isnt there when thats done..confirm that something running on the auxillary belt is at fault maybe bearings on one the pulleys whether that be the tensioner or alternator,water pump even though that should generally be done at the same time as the T-Belt..might be worth trying out.....Going by your description i cant see it being a turbo related fault if it stops above a certain RPM......In that view the only other thing that comes to mind is the clutch release bearing if clutch depressed..maybe when stationary at idle apply a little pressure to the clutch pedal and listen to see if it does change at all,maybe sslect a gear and slowly bring the clutch up to near bite point and listen for any can be quite diffcult to hear such noises over the engine..but if there is suttle change when depressing the clutch etc then that will be your problem i suspect......

Customer: replied 11 months ago.
Whine is there where you depress cluch or not. As soon as engine is above 1.5 reeves noise goes. Hope that narrows it now ? Thanks rob
Customer: replied 11 months ago.
Sometimes no noise at all.
Customer: replied 11 months ago.
Actually when driving noise comes when below 1.5 reves and only when u depress cluch. If the car is stationary, whine there weather you depress cluch or not. Hope that helps . Sorry for vauge information
Expert:  Robert replied 11 months ago. can be quite hard define noises over the net..but if you try the belt removal method then that will sort of eliminate that side of things on the i say its doesnt sound like a turbo issue to me..but if you wanted to go down that route of checks on that..then you would need to remove the intake tube from the compressor side of the turbo and then feel if there is any excess play in the vane should have very little to no movement on that..and if thats case with yours then turbo is ruled out..that baiscally leaves either a problem with the gearbox/release bearing or input shaft bearing..sometimes using mechanics stethascope and listen in the region of the gearbox bellhousing might help diagnose noises from within there or the gearbox itself..

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