Driving me mental! Hollow tone on light throttle? 2.0tdi CR

Rosskie

Active Member
Apr 20, 2013
162
0
Hey guys,

Really hoping someone can help!!!

I've picked up a 2.0TDi CR, and its got the most annoying problem in the world.

When touching throttle lightly, maybe 5% on the car emits a hollow, pretty constant tone. Does this in all gears, but the tone can be a different note, and its most notable at 42mph in 4th or 52mph in 5th. Although similar they are different points in the rev range.

There is also a tone when revving at standstill, lower in pitch, which I think its the same thing.

Only really does it when the engines properly warmed up. If you up the throttle a bit it goes away.

Might have to ditch the car if I can't get to the bottom of it, its that annoying. Turning fans onto full almost covers the sound.

Its just had the turbo rebuilt by the garage too - was all coked up. Cant see it being turbo related now.

I'm thinking possibly fuel pump? Could it be the a/c compressor? (there is an a/c leak + its not working, although compressor runs).

Any ideas welcome

Thanks
 
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