I'm a first time Subaru owner and first time turbo owner. Under harder acceleration at highway speed the turbo causes the engine to hesitate and black smoke comes out the tailpipe.

 

Do any of you knowledgable folk know what the problem is? how much it should cause to have it fixed? or if I can just have the turbo turned off?

 

Also, is there anyone in the Seattle area who feels experienced enough to replace my CV joints for a little cash?

 

Thanks for your help!

What is the condition of your air filter? If it is dirty, it can cause hesitation as I have seen it happen before. Also plugged fuel filter, dirty Mass Airflow Sensor, dirty fuel injectors, or possibly ignition timing issue come to mind. This might give you a couple places to start troubleshooting.

 

As far as the turbocharger, you can't turn it off as it runs off of exhaust pulses. You can remove it and I would venture to guess that it is possible to install an NA manifold, but it would run like a dog and power loss as a result would be very significant, leaving you very unhappy with it at best.

 

Patrick

is your car an auto or a manual? you could also try replacing the pcv valve. seems a lot of folks have seen black smoke when getting on/off of ramps with sweeping turns.

Hello I have almost the same problem i have not been able to get a kit to rebuild the turbo charger i took my gl 10 to a mechanic due to gray smoke from the tail pipe it seems the turbo charger is damage and is liking oil in to the exhaust system there for the smoke can any one help me