1. there is oil in both vacuum lines going to the ignition
Vacuum shutoff at injection pump is leaking, and sucking engine
oil into the vacuum system. NOT GOOD! You must replace the
shutoff, and you must flush the oil out of wherever it has
migrated to or the oil will eat the rubber hoses and seals,
assuming it hasn't already. The shutoff valve at the key
lock may be toast already. But...
2. the oil dripped on the lower plastic panel
3. the oil dripped onto the carpet
Fun cleanup.
4. the car will not turn off with the key unless while driving you
run the heat (only defrst works - NONE of the other buttons do
anything, except off) and then when done driving turn the defrost
off, wait 30 seconds, then the key will turn the car off
5. door locks don't work at all
These may be unrelated symptoms. That being set to Defrost lets the car
shut off sort of indicates that the ACC pods may be torn as well.
Defrost
results in no vacuum actuation of any of the ACC pods. This is a
separate
issue, though they can certainly act interrelated. If this has the
ECACCSFH
(Evil Chrysler ACC System From Hell) I don't know as much about it.
6. transmission shifts EXTREMELY smoothly, so that part of the
vacuum system must be working fine
Not necessarily. Too smooth is bad, it results in extra clutch wear.
Unhook the line to the tranny, and cap it off on the engine side.
(Line to tranny should be open.) It should result in very hard shifts.
If not, the tranny is already well down the old familiar road.
7. no other vacuum lines have oil in them
Good.
8. This is a 1980 300D with 113,000 miles
It's time. Age, not usually miles is at work here.
Is it possible the vacuum pump is leaking oil only into 2 lines?
Not really. They can also leak oil into the lines, but it tends
to migrate everywhere. Knock down the problems as you find them.
Your pump may also leak, but there's no need to go there without
evidence. Flushing the oil out of the existing fouled lines will
give you should-be-clean lines to examine later.
-- Jim
