Hello Folks,

I noticed yesterday that when accelerating from a stop that there is a puff of blue
smoke coming from the exhaust. I checked to see if blue smoke was coming out from
an idle stop, and there was none.

My mechanic suspects that it may be from the turbo and that is what he will focus on
first. He said that a new turbo unit was around $990.00.

Do you think that a new turbo unit on this car may cause other problems due to the increased
pressure of a new turbo unit sitting on top of an old car? Here is the car info.

1996 850 Turbo
Automatic Transmission
Approximately 146,000 miles

Thanks in advance

 

Why does he think it is the turbo?
For a $1000 I could put up with a little blue smoke from a stop light.
What weight of motor oil are you using? Is it really hot where you are?

 

Bashk,

Your mechanic is most likely correct, BUT....

When moving from a stop smoke can also be
Valve Guide Seals
Clogged Turbo Drain
PCV System

Bashk, how mechanically inclined are you and what kind of tools to you have available?

Valve Guide seals are not something to mess with unless you are an accomplished mechanic.
The Turbo Drain and PCV are something a beginner can accomplish and there are how-to's on this forum to help.

If you can do more than just check and change oil. Example, if you were competant enough to say do a complete tuneup and maybe a brake job, then you can rebuild your own Turbo.
Rebuilding the Turbo only requires a few tools, good jack, jack stands and some patience. A good kit is about $100 and it can be done in 1 day maybe 2 if you take your time.

Let me know if you would like to attempt the Turbo rebuild I have done it myself and I am going to do it again because I chose a CHEAP kit and something is bothering me about it.

 

First check all parin the Vent system. The turbo is the last thing to check.
Also I have yet to see a 5 cylinder head with bad valve seals and guides.

 

A Co-worker had a 94 850 that did the same thing. A cleaned and re-vitalized PCV system fixed the issue. As Tech said, that is where I would start

 

and there is still blue smoke coming out from the exhaust. Someone mentioned in one of the responses "First check all parin the Vent system. " Can you explain what parin the vent system means?

Thanks,

Bash

 

I believe that Tech was referring to cleaning the PCV or as it is otherwise known as the positive crankcasse ventilation system. A Clogged PCV system can cause smoke due to increased pressure in the motor

 

+1