loud suction noise

[Dodger]

hi just wondering if anyone can help i have a 2011 2.0 cdi insignia with 70,000 miles on it, its started to make a very loud sucking noise like i have no air-filter on it when i rev the car and i dont no why, it has an air filter all intercooler pipes checked and are ok just had egr cleaned and map sensor cleaned and replaced the maf sensor, this all started when i stalled the car last week and i lost turbo boost i took it to the garage and they replaced the maf as they said that was all what was showing up on there computer, got the boost back after getting new maf fitted now its just got a loud suction noise like there no air filter it drving me mad it was never like this before can anyone help please.

[minisprint4230]

Take it back to garage, didn't you notice it when you picked it up ?

[dezzyb]

Sounds like intercooler problem

[lizzard-t]

As mini sprint says take it back .
It's a guessing game .