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Turbo Question

   
Old May 6, 2008 | 12:15 PM
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kwaskow's Avatar
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Default Turbo Question
1.8L, 225 TT has a rattly sounding Turbo when I let off the gas. Sign of a problem? Does not happen all the time and seems to improve the longer the car is run
 
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Old May 6, 2008 | 01:05 PM
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Default RE: Turbo Question
Do you mean "rattly" as in "fluttery"?

Like a whish-sh-sh-sh-sh sound? if so your diverter valve is busted.
 
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Old May 6, 2008 | 05:02 PM
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Default RE: Turbo Question
nope - not that.....almost like an exhaust rattle, but only when the turbo backs off.....hack maybe it is a manifold rattle
 
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Old May 7, 2008 | 10:45 AM
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Default RE: Turbo Question
check the manifold bolts, the dp bolts and the wastegate nut. Most cases its on of those and just needs tightened
 
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Old May 7, 2008 | 11:43 AM
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heat shield?

 
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Old May 7, 2008 | 11:58 AM
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Default RE: Turbo Question
There is a sheild attached to the valve cover but its basically a small lip to prevent heat to the coilpack wires. there is also a heat wrap on the chargepipe but neither would make the noise.
 
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Old May 7, 2008 | 12:11 PM
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Default RE: Turbo Question
THanks for all the advice.

What is the best repair manual I should own for this vehicle?
 
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Old May 7, 2008 | 12:18 PM
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Default RE: Turbo Question
a bentley manual. You can get a book or cd cheapest from amazon. But if you want just graphs and part numbers, vagcom.com. It gives part numbers also.
 
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Old May 7, 2008 | 12:33 PM
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Default RE: Turbo Question
ORIGINAL: cincyTT

There is a sheild attached to the valve cover but its basically a small lip to prevent heat to the coilpack wires. there is also a heat wrap on the chargepipe but neither would make the noise.
psh... maybe his car has one and nobody else does!haha
 
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Old May 7, 2008 | 12:42 PM
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Default RE: Turbo Question
psh... maybe his car has one and nobody else does!haha

Has one what?
 
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