997TT turbo problems
#1
997TT turbo problems
I seem to be having some issues with the turbos on my '07 997TT. Since yesterday it seems to have lost almost all boost. It never goes above 0.2 bar (3 PSI) according to the boost meter. It also feels like the engine's lost most of it's power above 2.5-3k RPM. On lower RPMs it feels more or less like it used to.
I can hear the turbos spooling up. In fact they seem to be much more audible than they used to be. It's kind of like a constant "psshhh" sound, similar to the sound that can be heard on some "riced" turbo cars with a dump valve. To me it sounds like the turbo boost is being vented into the atmosphere instead of going into the engine, but I'm no mechanic. Could it be a boost leak somewhere? Or does this sound more like stuck VTG actuators, which I hear is a common issue?
I can hear the turbos spooling up. In fact they seem to be much more audible than they used to be. It's kind of like a constant "psshhh" sound, similar to the sound that can be heard on some "riced" turbo cars with a dump valve. To me it sounds like the turbo boost is being vented into the atmosphere instead of going into the engine, but I'm no mechanic. Could it be a boost leak somewhere? Or does this sound more like stuck VTG actuators, which I hear is a common issue?
Last edited by Id4ever; 04-22-2012 at 01:24 PM.
#4
I agree with looking at the hoses. Sounds like you have a boost leak somewhere in the system. Maybe have a friend help by building boost while you listen to the source of the sound.
Mike
Mike
#7
99% is a leak from a hose...when wastegates stuck you see around 0,8bar...check all hoses and also T pipe just after throttle body...(left and right black hoses feeding air to each cylinder bank tend to slip...)
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mark @ AIM Performance
Automotive Parts & Accessories For Sale/Wanted
119
07-28-2021 08:07 AM
tropicatango
Automotive Parts & Accessories For Sale/Wanted
5
10-14-2015 11:32 PM
Yotam Refael
Cayenne
0
08-18-2015 03:03 PM