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Popping noise

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Old May 20th, 2019, 20:37   #11
davebb
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So are you getting this Popping noise ,
Dave
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Old May 31st, 2019, 16:08   #12
northernblue
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Quote:
Originally Posted by davebb View Post
I don't know why, it is simple, I am not a mechanic,
Has a boost leak test been done ? do a boost leak test/ smoke test,
remove the plastic panel under the intercooler, is there any oily gunge under there, if there is you need a intercooler, but do a smoke test,
Dave
Hello again, car has just passed a smoke test and still have popping noise .

I do have a code that suggests something is wrong with the maf sensor, is there any connection?
Cheers.
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Old Jun 16th, 2019, 12:54   #13
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Update , fitted a different vacuum pump ,still no luck.

If i pull off the vacuum pipe (the one that goes to boost solenoid),then pump the brake pedal the popping goes away,until i stop pumping.

If i pull off the brake booster pipe the popping also stops until i cover it or put the pipe back on.

I don't have full turbo at motorway speeds but the car pulls way better than in 2nd or third.

Any ideas ?

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Old Jun 16th, 2019, 12:58   #14
northernblue
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Is the gasket on the vac pump at fault.
http://www.skandix.de/en/spare-parts...-pump/1026564/
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Old Jun 16th, 2019, 14:30   #15
davebb
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Let me look at my crystal ball,
I can see you need to use a vacuum gauge on the pump,
Dave
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Old Jun 24th, 2019, 14:39   #16
northernblue
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Ive got 26hg at idle now.

Popping noise returns when i reconnect the hose back on , the one that goes to the boost solenoid.

Can anyone tell me the correct hose size and also where i can get the rubber elwbows from, cheers.
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