2004 Alfa Romeo 156 - Blowing Noise

156 1.9JTD Veloce M-Jet Problem
The Problem

Blowing Noise
Jul 15, 2008 (11 years ago)
Have just drove to town and back at lunchtime, car was fine on the way, on way back started to get a bit of a blowing noise from the rear of the engine bay when over 3000 rpm, theres no loss in power or anything like that sounds like a loose pipe.

could this be the pipe to the turbo? there is no loss in power just a slight hissing sound when revved.

Car: Alfa Romeo 156
Variant: 1.9JTD Veloce M-Jet
Year: 2004
Category: Leaks & Noises
Recalls: Alfa Romeo 156 Recalls
More: Alfa Romeo 156 Problems
mr suzuki
Fixes: 685
Jul 18, 2008 (11 years ago)
has your 156 got a boost gauge on dash is it reading normally it has a vacc pipe running to it that may have a small split or check all vacc pipes for leaks
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