Question about Subaru 2011 Forester 2.5 XT Touring
My Subaru Forester Turbo has developed a hissing noise even under light acceleration. I was told by my mechanic it is the clutch on the aircon pump, just had all this attended to and it still remains obviously not the problem any ideas ?
Posted by Anonymous on
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Posted on Jan 02, 2017
exhaust leak,or blocked,squashed exhaust,may be turbo pipes leaking or loose,have to get the obvious looked at first,then get mechanic who knows to look at it,dont cut corners,gets expensive
Posted on Oct 23, 2009
Hi there am having same problem with my 2001, did you find anything out. also when I go up a hill it trys to sputter out on me, never on the flats tho.
Posted on Jun 03, 2010
Auto or 5-speed?
Subarus have CV axles in front and back. And a drive shaft from the center differential of the transmission to the back differential.
Yes, it could be the drive shaft or axle. If you turn the car hard left or right do you hear any noises - usually a 'clicking' sound? This is likely a CV axle in front.
Check the fluid in the transmission (Automatic) (info is in the Owner's Manual) to make sure it's full and/or gear oil in the front differential.
If it's an Automatic transmission, the fluid may need changed - NOT FLUSHED - if it has more than 30K miles since last changed.
Posted on Sep 10, 2010
1. My opinion is to check and replace if necessary the knock sensor, (under warranty of course). (Swap a knock sensor by another good one, and test again the car).
2. This "ticking" sound belongs to the engine at full load, and knock sensor must send this information to the Engine Control Module (ECM), which should decrease the ignition advance in order to eliminate the "ticking" noise!
3. The turbocharger is not the root cause of the problem, because the "ticking" sound still occurs when swapping the turbo!
Posted on Dec 15, 2010
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