If the uppipe or down pipe is not on tight could it cause boost leak? thanks for your time.

 

it would cause an exaust leak, and it would sound like a small animal dying in pain...

 

i gotta think your cel would go off sooner or later

 

maybe maybe not Uneducated. ive had exhaust leak and never got one.

 

sorry... thread jacking in progress.... how did you figure out you had a leak? hmm... you got me thinking now... this does not sound like a fun problem

 

Well, lets think about the parts involved. UP-pipes and DOWN- pipes have to do with the exhaust half of the turbo. Boost would be associated with intake side of the turbo.

Run your car at idle, wad up a rag and try to plug your exhaust pipe with it. DO NOT hold it in there! Just plug it momentarily, if you hear any ticking or pulsing sound you may have an exhaust leak.

The easiest way to check for a boost leak would be to get a boost gauge.

 

if you think your having a boost leak check all your hoses. if you car just sounds different then it's probably an exhaust leak. if anything is loose...tighten it. problem solved

 

exhaust leak=cricket on crack
boost leak=really loud turbo

or at least thats how both have been described to me

 

if it is a boost leak, which hoses do i check?

 

^^^^ LOOSE ONES!


sorry, could not resist, but yea, loose is bad.

 

Check your intercooler piping. Check your uppipe as well the headers and exhaust manifold for anything loose.

 

what sounds are you hearing and what are you feeling from the car?

 

Well, when i boost my car on the freeway the rpm goes up and down, even if i just holding the pedal steady.

 

how much does subaru charge to check and fix a boost or exhaust leak?

 

how so? Do they rise about 500, pause, rise about 500, pause and so on? Thats the problem I had when my car was untuned (did it when it was stock and when it had the TBE on) the dealership said it was "the TCM trying to protect the tranny from the power" which I knew as complete BS and called him on it too. The problem completely went away when I got the car tuned. Since I got it tuned I got a boost gauge and now that its running untuned for a little bit its doing the same think and the boost goes absolutely crazy going up and down.

also what my car would do....when I'd floor it the rpms would jump up and then go down and then climb semi-normally.

both problems went away when I got tuned.

manual or auto tranny?