My 1997 1.9TD Ducato diesel always idles a bit fast. I was told by the garage that changed the cam belt that the cold start switch was disconnected (and they left it like that). I queried whether that would cause the fast idle but they thought that it only raised the idle when cold, rather than lowered it when hot.
I'm not so sure now and I'd like to reconnect it but I haven't a clue where to start looking. Anyone know where to look or know of any on-line pictures of said device?
Tim
That's usually the way they work. Except, of course, a cold engine doesn't like idling at low speed. So, if you disconnect the cold start setup, you need to raise the idle speed to allow it to play before it warms up...
But this is a fiat. ;-)
I don't want to disconnect it! I want to find and reconnect it to see if this cures the fault.
Tim
do you know the actual engine code, autodata does not give many details on the engines in the ducato, but I suspect it is the same lump in the marea and it gives some details for that. They have an idle speed control actuator on the diesel pump itself.
I'm not sure where to look for the code. it looks like this if this is any help.
You're right. I've pulled the turbo hoses off to get a better look and I now see that there's a Bowden cable affair running from near the thermostat to the injector pump. The end of the cable is floating free.
The pump has a clevis arrangement and the cable has a circular drum shaped bit of metal about 8mm in diameter and about 5mm in thickness secured to it by a small grub screw. The cable passes through a hole in the flat face of the drum. I can't see for the life of me how the drum shaped knob fits the clevis. Even with the actuator lever fully pulled back I can't 'hook' the cable into the clevis.
You can just make out the cable end in this picture.
Does my description of the drum on the cable sound like it's the proper part? I'm wondering if there's a part missing that would enable the join to be made.
Thanks for your help.
Tim
I don't think I can help you from the pictures. But it does sound as though you are going in the right direction. Watch out for another Ducato and ask to have a look.
I'm suggesting what the muppet who disconnected it may have done, explaining the behaviour...
Ah right. I did wonder whether the thermostatic cold idle actuator might be knackered which is why it was disconnected. I guess I could mark the cable with a bit of tipex or similar, and see if it's moved when the engine's warm. If it doesn't move I'll probably just leave things alone.
Tim
Nah, they probably just disconnected it because they were bored one Sunday morning.
Have something to add? Share your thoughts — no account required.
Ask the community — no account required