Join Date: Jun 2011
Location: Russian Federation
156 Selespeed jerky, pressure drops - clutch solenoid?
Moscow calling once again. Sele problems seem endless ((
Some time ago we replaced dead clutch, recalibrated the sele with FiatECUScan, after that the car ran fine.
For a week.
Then, sele pump died. We replaced the pump with a new one, but what happens now is:
1) the car is extremely jerky, can allow up to 5000 rev on 1st gear, then suddenly the clutch "comes" and the car jumps to almost get stalled
2) the pump goes on each 15 seconds when the engine is idle (with or without any gear angaged, no matter). FiatECUScan shows that the pressure reaches 55 bar, then very quickly falls to 45. When the engine is off, it holds pressure for a very, very long time.
All calibrations (rod length, FES procedures) were done several times. No result.
So does this all mean the clutch solenoid is dead? Our logic is that it's the only thing that's not engaged when the engine is off (and pressure is fine), but engaged when it's running (and the pressure falls from 55 to 45 in a few seconds).