Hello, I bought a Volvo 850 bj 1996 2.0 10v yesterday. The Volvo runs great at the cold start and drives without any problems, however, when it is warm it starts to jerk heavily under 2000 revolutions and goes out. After it has gone out he jumps after long organs briefly starts but then extremely restless and stutters until it goes out again. Yesterday I cleaned the throttle valve which was very dirty, but does not seem to be the origin of the problem. are two hoses leaking or not present (pictures in the appendix) could be the cause ? I am very grateful about tips and advice.