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Location:
Perth
Registered:
August 2004
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Need Help With GT4 :(
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Mon, 18 October 2004 15:32
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I was driving my st185 gt4 today at about 140 in 5th gear and it suddenly lost boost  it was like i was driving a NA car ....hope i havent f****d the turbo  ...does anyone have any idea what it could be ?
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Location:
Wahroonga
Registered:
June 2003
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Re: Need Help With GT4 :(
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Tue, 19 October 2004 01:57
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were you on high boost, cos it might be the boost limiter. Drive it again, and see if it will go on boost, if it drives fine you probally just hit the boost limiter. If it still won't go on boost, check that all the hoses/pipes from turbo to intercooler to induction are ok.
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Location:
Perth
Registered:
August 2004
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Re: Need Help With GT4 :(
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Tue, 19 October 2004 06:37
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i drove it but it still wont go on boost .. i checked the pipes but i couldnt see anything wrong ...but i could be mistaken ...i did notice yesterday after i finished driving it i could hear a strange hissing noise coming from the intercooler...
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Location:
Bulleen, Melbourne
Registered:
June 2002
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Re: Need Help With GT4 :(
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Tue, 19 October 2004 08:01
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Is your check engine light on? Pull the codes from the ECU anyway and see if it comes up with anything. Sounds like what mine did when the knock sensor went, throws the car into a safe mode.
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Location:
Perth
Registered:
August 2004
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Re: Need Help With GT4 :(
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Tue, 19 October 2004 08:18
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nah no check engine light comes on
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Location:
Sydney
Registered:
September 2004
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Re: Need Help With GT4 :(
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Tue, 19 October 2004 08:35
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a hissing noise from the intercooler could mean a leak like a weld or one of the fins cracked under boost....see if you can locate the source of the noise on the IC.
if you suspect a leak but cant track it down over engine noise you can even take it off the car, just seal one end with your hand and blow into it to see if it leaks.
If your IC has a leak then thats your loss of boost...
Just pray that nothing foreign has entered your turbo and has damaged your turbine or compressor, worst case scenario is something was sucked into your intake, damaged your compressor and a part of the compressor itself is lodged in your IC either causing a leak of its own or a hissing noise by obstructing one of the fins.
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Location:
adelaide
Registered:
October 2003
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Re: Need Help With GT4 :(
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Tue, 19 October 2004 08:42
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Have you got a bov ? check all the small vac lines for cracks and make sure there are no loose ones.
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