Vauxhall Zafira intermittent increased revs whistling sound
Variant: 1.6 active
Model Year: 2006
Categories:
Running Rough, Starting & Power Loss
I have noticed when car is idling an increase in revs approximately every 30seconds accompanied by a whistling sound. I have narrowed this down to near the air filter where the pipe enters the engine. Also when turning off the engine there is a rushing of air not sure whether in or out tho.
Posted: Sep 24, 2014 (10 years ago)
Sounds lie you have a vacuum pipe / air hose leaking or off .
Posted Sep 24, 2014 (10 years ago)
I have since noticed the large air pipe from the air filter to the engine appeared to be crushed/sucked in. I have loosened it off and run engine without it connected but still the problem persists. Any more ideas anyone???
Posted Sep 24, 2014 (10 years ago)
Wont run right if hose not fixed ( if hose I think you are talking about )
Posted Sep 25, 2014 (10 years ago)
I also noticed suction in the dip stick. The problem was the main breather for the engine solved by fitting a new rocker box cover bought off ebay for 140 pounds as the breather is built into the cover and cant be replaced separately. Hope this helps.
Posted Oct 1, 2014 (10 years ago)
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