How long should it take between time the key is turned off and time engine stops? Immediate? In my car, there is a lag of about 1 sec. May be my imagination but it seems longer since I had valves adjusted and "hollow" bolt cleaned last week. I've looked for loose fittings and don't see any.

My center dash vents are acting up a bit too...don't always blow air when they should. Could that be related? Other vacuum components (locks, trans shift) appear to be working fine.

Thanks,

Nic
'85 300CD