You have a big leak in the central locking system , I'd find the yellow plastic pipe under the hood where it connects to the other vacuum pipes , cap it off and plug the hole , see if this helps .
The next thing is to drop the left side dash board cover panel and find and replace the two 3" long rubber hoses at the back of the ign. switch , they connect to two brown plastic pipes and unless you personally changed them , I _guarantee_ they're leaking right now .
Then look at the back of the injection pump and locate the brown plastic pipe and short hose bit , replace it and you should have an engine that halts quickly .
The vacuum pumps do fail slowly but before touching it you *MUST* replace ALL those short bits of vacuum hose .
-Nate
AJ Wrote :
I've known for some time that I've got a vac system issue in my 84 300SD..
The central locks don't "extactly" work.. The drivers door locks the trunk and fuel door.. Not the car doors..
On cold days (and when the engine is cold) the engine doesn't shut off with the key.. Locking the door doesn't shut the car off (as my old 240D did)-- but pressing the brake pedal does.. Pressing a different button on the hvac controller does, as well.. (Changing from defrost to vent, I think is what I did, yesterday..)
I've been having cold start issues-- I'm wondering if the pump doesn't have enough vacuum start? Is that a possibility??
after the engine starts, even a second or two of runtime-- it's a non-issue..
The glow plug circuit has been interrogated to death-- and it's functional, the glows have all been ohm tested (with removal/replacement scheduled...) It doesn't "ACT" like a glow plug issue..
...no trees were injured in the delivery of this email.
Some electrons WERE inconvenienced, however.
The central locks don't "extactly" work.. The drivers door locks the trunk and fuel door.. Not the car doors..
On cold days (and when the engine is cold) the engine doesn't shut off with the key.. Locking the door doesn't shut the car off (as my old 240D did)-- but pressing the brake pedal does.. Pressing a different button on the hvac controller does, as well.. (Changing from defrost to vent, I think is what I did, yesterday..)
I've been having cold start issues-- I'm wondering if the pump doesn't have enough vacuum start? Is that a possibility??
after the engine starts, even a second or two of runtime-- it's a non-issue..
The glow plug circuit has been interrogated to death-- and it's functional, the glows have all been ohm tested (with removal/replacement scheduled...) It doesn't "ACT" like a glow plug issue..
...no trees were injured in the delivery of this email.
Some electrons WERE inconvenienced, however.
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