300D Idle stalling
Now it happens at idle. The check engine light comes on, but she can restart it. We replaced the glow plugs because it was happening just after starting when she put it in gear, late in the day. I was suspicious the probably original glow plugs were weak and the short glow wasn't giving the weak ones time to produce enough heat.
Once the whole cluster lit up for her and she got a message similar to "Cluster Error" while she was on a steep hill, but that hasn't repeated. Since the glow plugs she had it stall just as she was turning into a place.
The idle is about 500-550 RPM, what should it be? It seems like it wants to die when you stop, then it comes back. I haven't been able to get it to stall, however. I don't drive it and she lives over an hour away.
I replaced the K40 last year when it was cutting out on the highway. Could that be bad again?
There are no bubbles in the fuel and I replaced all the visible vacuum lines because the ones running to the solenoids and motors on the intake tube seemed brittle. Are there other bad ones I could be missing as well?
Where do these commonly have intake restrictions?
Is the idle correct? Or too low? It seems way too low to me.
I noticed some small air bubbles in the clear lines this time.
I checked all the fuses back by the battery.
If someone could message me the instructions for taking the intake off, I'd appreciate it. Also, what can I expect as a cost for lines?
I'm either seeing the metal ones or the cloth-covered rubber return lines.



