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Old 07-07-2019, 03:33 PM
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GhostRider8 GhostRider8 is offline
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Join Date: Jul 2019
Location: Birmingham
Posts: 22
Vacuum Leak Assistance

Alright one issue that is on my short list to tackle on the new (to me) 300D is finding all the vacuum leaks. All the typical issues apply, car wont shut off, door locks don't work, shockingly the windows work! Im currently having to shut the car off with a vacuum pump I have plumbed into the ignition switch hose

Im looking for some guidance on where to start? I know from having to fix the ignition key first thing when I bought the car that those lines are not the issue, I tested the vacuum created when turning the key off its only pulling about 5 PSI on my pump gauge. I assume that the leaks in other places are decreasing that pressure?

Can anyone answer which likes these are that are capped by PO? The yellow hard line broken on my driver door matches the unplugged valve in engine bay so is that the door lock vacuum line?
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Vacuum Leak Assistance-img_9302.jpg   Vacuum Leak Assistance-img_9303.jpg   Vacuum Leak Assistance-img_9300.jpg  
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1983 300D 255K
2014 ML-350 Bluetec
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