Remembering why I
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AO Silver Member
Join Date: Sep 2001
Re: Engine dies at full stop due to engaged automatic transmission????
Don't know the exact mechanism of a torque converter lock, but it comes into play at the point where gearbox speed is almost the same as engine speed, and it forces the converter to act like a normal clutch - it locks input & output so it doesn't waste power. I could feel it engage on the Jeep I used to have. I'm assuming the Alfa has one, and that it's a bit more sophisticated than the old Jeep!
Murat, it sounds a little like it could be the idle actuator playing up, rather than the gearbox perhaps.
Another question. When it does stall, is it brutal, or does it just sort of die quietly? If it's brutal, then it points back at the box perhaps. If it's more like it just gently slows down and stops, it could well be the idle actuator. Another big assumption I'm making is that this version of the V6 has a separate idle actuator rather than using the main butterfly for this function....I'll go and have a read of e-Learn and see what it says. The description of the auto box is very comprehensive. I've only quickly scanned it so far so hopefully it's equally good for the engine.