Turbo not spooling/boosting

[green_GST]

Driving the car yesterday, it was alright. Has some boost leaks, but will hold 15psi. No problems with the turbo.

Today, I drive the car conservatively until the temp is up and it's running smoothly. I get onto a stretch of straight road and no cars, true, not gonna go fast, but to be on the safe side. Anyways, I do about 50% throttle. SNAP! Where the hell is the spooling noise? Ok, well one more try to watch the boost gauge, the highest it goes is 2 psi vacuum, not even 0.

So I baby the car the rest of the way to work, stay a few hours, and baby it back home. I pull the intake off to check for it being seized or something. Spins freely and no shaft play. Check all the hoses, everything seems good. Idle is normal at 11 psi vacuum (cams). Check the oil, it's halfway, but I add some since I'm already there.

Again, no turbo sounds at all, no spool whistle, no blow off, no boost, no smoking, everythng looks feels/fine. Any ideas what's wrong or what I could check for?

As always, thanks in advance!

 

[magik95]

Crack in the manifold? Waste gate stuck open?

 

[BootlegGreg]

Check the arm that mounts to the wastegate actuator. It is very common for the cotter pin to rust out and then the gate gets stuck open.

 

[green_GST]

Check the arm that mounts to the wastegate actuator. It is very common for the cotter pin to rust out and then the gate gets stuck open.

Just checked this, the cotter pin is still there and the arm is still on. With force (and pliars to hold the tab) I can pull the actuator arm out.
I could be wrong, but even with the wastegate stuck open, wouldn't there still be a little whistling?

 

[Gordon King]

What was the fix? My car doing the same thing

 

[pauleyman]

this post is 12 years old and the member hasn't been active since 2008

 

[Gordon King]

I seen the age of post, didnt know if anyone would know the solution