Turbo does'nt work

It may be your fuel regulator, mine did the same thing, and the turbo should go almost down to no power while going down hill, thats normal

It is located just to the rear of the turbo on the exhaust pipe. It is the first component after the turbo. Should have an 02 sensor just in front of it.

if you remove the turbo from that car, the car will not run very well because the computer is setup to run with a turbo device, it need the air flow to force the fuel where it need to go. after removing the turbo you are going to have fuel issue, stay running, be fore you buy it go to the owner ask if they would mind if you or them disconnect the belt from the turbo charger and restart the car, see how well it runs, try and drive it, if every thing works okay, than buy the car and leave the belt off the charger.

Clogged up PCV System ---maybe

Too much crank case pressure

Fuel filter!! is it turbo?

Hope this helps.

Try a can of Lucas Transmission Slip - 100M - see if that helps. Something is sticking in there. This might free it up.

check under drivers dash. and right and left sides of dash with doors open. may not be a flosher but a relay instyead

I am a volvo tech and your problem is fuel pressure ralated and i had same problem in 1995 850 turbo and the fuel pump was the problem and a used one is around 35.00

This is a common problem with all models of volvo, with the non digital odometer  pre 1998,, there is a tiny nylon gear deep inside the odometer that needs to be replaced. Your dealer will not fix it, but will put in a new one for you as the cost of fixing in labour is more than a new one,, My solution is much cheeper,, I have
many low milage VOLVO odometer/instr clusters, a few hi'r km 1s


ODOMETERS FROM 1987-PRESENT
I have many pre 1998 Volvo instrument clusters, most with Very low milage, almost all in Km, I have most models of Volvo.

at these prices IT'S A GOOD IDEA TO HAVE AN EXTRA ONE , comes with detailed instructions -with pictures-on how to remove your old one and re-install

just for example
I have 4,, 1994-1997 850/s70/v70 /c70turbo with less than 10,000 km
2 1994-1997 850/s70/v70/c70 non turbo with less than 10,000 km
1 1990 740 -940 turbo with less than 4.000 kms

I also have many Volvo instrument clusters from 1987 to PRESENT with varied milage,,let me know what year and model and milage you are looking for,, I will have something close

WILL SHIP ANYWHERE IN N.AMERICA