Boost left, Weird Exhaust noise came.....wtf??
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Ok, so as lots of you know, my boost is gone.
I used to get that push back/g-force feeling when I push past 3k RPMs.
Well, now I don't get that feeling anymore. I'm hearing that it could be a Vacuum leak. Could such a small leak take all the boost away? I'm getting past 1.5 BAR on the fac. gauge, but I'm just not getting that go-fast feeling.
Well, recently, I've also noticed some weird sound coming from around the CAT. Sounds like something is moving around, and I can only here it when the engine is cold.
Anyone know what's up? Boost is gone, got weird sound from under car.
Thanks, btw im desperate to get this fixed.
I used to get that push back/g-force feeling when I push past 3k RPMs.
Well, now I don't get that feeling anymore. I'm hearing that it could be a Vacuum leak. Could such a small leak take all the boost away? I'm getting past 1.5 BAR on the fac. gauge, but I'm just not getting that go-fast feeling.
Well, recently, I've also noticed some weird sound coming from around the CAT. Sounds like something is moving around, and I can only here it when the engine is cold.
Anyone know what's up? Boost is gone, got weird sound from under car.
Thanks, btw im desperate to get this fixed.
#2
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posted this on the other forum but...
is the cat clogged? older cars (never heard of a 944 doing it) have been known to fill a cat and there would be no place for the exhaust to go.
P.S. San Dimas high school football rules!
is the cat clogged? older cars (never heard of a 944 doing it) have been known to fill a cat and there would be no place for the exhaust to go.
P.S. San Dimas high school football rules!
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I'm seriously considering removing the wastegate now that I've read this:
https://rennlist.com/forums/showthre...hreadid=109033
How many miles where on your car when your wastegate fell apart?
If it is my WG, does anyone have on that I can buy, the lindsey, SFR, etc are very pricey for a 16 year old.
Does anyone know of a website/tutorial on removing the wastegate?
Thank you.
https://rennlist.com/forums/showthre...hreadid=109033
How many miles where on your car when your wastegate fell apart?
If it is my WG, does anyone have on that I can buy, the lindsey, SFR, etc are very pricey for a 16 year old.
Does anyone know of a website/tutorial on removing the wastegate?
Thank you.
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Originally posted by Cyrus951
If it is my WG, does anyone have on that I can buy, the lindsey, SFR, etc are very pricey for a 16 year old.
Thank you.
If it is my WG, does anyone have on that I can buy, the lindsey, SFR, etc are very pricey for a 16 year old.
Thank you.
The whole car is pricey for a 16 year old.
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Lindsey Racing has a tutorial online. My car had over 80k miles and the wastegate fell apart within days of adding a Boost Enhancer. Used wastegates are on eBay for about $75 fairly often. You'll probably need a couple gaskets from the dealer that run about $30 too.
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Mine was making change at 195K, TiAl replacement for about 300 bucks.
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Sam and Matt, when your wastegates did "go" did you guys suffer from the same symptoms as me? Loss of boost, weird noise coming from around cat, etc?
Thanks
Thanks
#11
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mine just wouldnt hold any amount of boost towards redline like it used to. I noticed like a 3psi difference. Not real similar to what yours is doing, but replacing the wastegate is a good idea regardless. The stock one sucks imho. You can use a cheap controller as long as you have a nice wg. Tial comes to mind.
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I recently lost my 25psi boost to 8psi max and spend many hours looking at “the wrong end” including sealing up a slightly leaking idle motor (they leak a bit with age) and fully disabling the wastegate, which gave me 15 psi and some dangerous noises.
I finally took off the 1-year old cat and sure enough, the last of the two bricks had cracked and one of the pieces were blocking 90% of the exit, getting worse with time as it was ground into shape.
After grinding the brick out all my boost is back, and then some. I did recall hearing some rattling, but never “connected the dots”.
In other words, your problem still could be the cat.
Laust
I finally took off the 1-year old cat and sure enough, the last of the two bricks had cracked and one of the pieces were blocking 90% of the exit, getting worse with time as it was ground into shape.
After grinding the brick out all my boost is back, and then some. I did recall hearing some rattling, but never “connected the dots”.
In other words, your problem still could be the cat.
Laust
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Since you show boost on your gauge then I would think that your cat may be clogged. Raise your vehicle and support it with a jack stand, lightly hit the cat with the palm of your hand and listen for any loose pieces although removing it for inspection would be better, just in case a piece has jammed itself in the exhaust. If you hear a rattle from the inside then it's your cat. Reno
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Cut out the cat!! If price is a concern, get a GURU wastegate. I would put mine up against any other tuner companiy's wastegate. Boost comes on fast and hard , and I hold any psi I want to redline. I even get 15 psi in first, red at redline. Can't touch it for $190.00 !!!!