URGENT HELP! Loss of Boost should I be driving the car?????

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Originally Posted by ZD30 victim

A whirring and hissing sound is not something you want to hear from a turbo engine. Hissing I could get over until I got home but markedly lower boost levels combined with a distinct variable whirring sound would have me pulling the turbo intake elbow and exhaust outlet for a look and feel ASAP. Compressor and or turbine impeller / mainshaft bearing failures can turn ugly $$$$ pretty quick. Typical turbo shaft tolerances are measured with micrometers / dial indicators, any impeller damage or contact with the housing snails is a stop operating immediately condition, if you don't want your engine to ingest a good dose of metal. Any dramatic unexplained loss of performance needs to be investigated. ZD30's pre 07 need some post nissan TLC toensure reliability.

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Cheers mate, yeah the initial hissing/wirring was the boost line which had blown off. I'd just had the turbo checked and have had it checked again and all seems well. This episode has definitely got me switched on to what's what with how my engine runs or should be running. All a learning experience I guess :)

Thanks for your input

'ZD30 Victim' doesn't sound like a user name that's had a good ZD3O experience, did yours blow on you?