http://www.cafepress.com/boost_gear/

 

Still no eng light....can make it happen now on demand, interesting. When it happens you can here the turbo unload. i think the shudder most people are feeling is the turbo unloading, you have to listen for it. Back out the petal for a sec and its normal. Gota be in eng movement.

 

On mine, once the turbo lets go it won't come back until you turn the car off and restart. It is dead for the rest of the ride.

 

Sounds like overboost control. Mine had bad bearings in the turbo when that occured. Had an error only once.....once turned off and back on error gone, but erratic/low boost. Foreign turbo part.....companies are getting what they pay for with importing.

Love the car and GM isn't to blame for worldwide competition to produce mass volume at lowest dollar from manufacturers cutting corners......turbo maker. (no excuse for bearings gone at 13K in daily driver, non-racer)


Also, everytime I have removed my bypass valve to put in my Dejon spring (twice now), the diaphragm was collapsed/swallowed the stock spring.

 

I have a feeling this is what i will find also.....since I still do not have a code and its only under moderate to heavy load I suspect a mechanical part, something is causing mine to dump uncommanded.

 

Update from sunny SoCal. Car's been with the dealer for three weeks while GM scours the country for part number 19168559 - an actuator. Not fussed about not having the car, just the fact that GM can't predict when the part might surface. Given the number of posters on this thread and similar ones, I've got to figure that there is more than one idle SS around the country. So it goes, I guess. Thought I'd ring the Chevrolet Customer Support number just for grins. Hope the number rings on a desk based in the U.S.

 

Maybe it's the accuator but I'll be you dollars to donuts it's not.

That is standard GM and GM dealer reply and in my case they said the same thing, kept the car for a week, I raise hell with gm and they said the part would be in a few days maybe a week and that was two months ago.

I pulled information from this forum and others and was positive it was a leak in one of the rubber tubes (don't know which one), the dealer put some glue on it, it ran for a while and they replaced the tube and I've driven the hell out of the car since then with no problem.

Find a dealer that knows how to install this upgrade.

BTW: I've asked a bunch of tuners, about the accuator and they all said it's almost impossible to break.

P.S. Send something to the Texan GM manager. I'll bet he knows.

If not call my dealer at Santa Monica Chevrolet and ask for the service manager or the parts manager (Bob).

Bob's a good guy, but for what it's worth nobody seems to really know a lot about these cars.

I ordered the GM performance exhaust and the intake kit for the SS through the dealer and was assured they'd fit the SS, but they didn't.

It actually turned out good, because going through the dealer for the exhaust would have cost about $1,100 with installation. Today found a guy down the street on Lincoln Blvd. that did a magnaflow custom dual exhaust, beautiful work with rolled exhaust tips for $600 even.

 

russruth, Thanks for the tip on the Santa Monica Chevrolet, I'll pass the infor along to my guy in Torrance. Would mind passing along the name of the exhaust shop on Lincoln Blvd?

 

Sport Muffler
2660 Lincoln Blvd.
Santa Monica, CA 90405

Mario
310.314.8860

 

Mine was like that at 600 miles when I changed the spring out to Dejon. I was confused when I went to change the factory spring out as it was collapsed and couldn't see the factory spring. Luckily there were pictures posted up on the web and a few other people with collapsed diaphragms also. People can say what they want about the Dejon spring I've had it for 3,400 miles now with no problems and boosting 22-24 psi.