I need a bit of quick help here. I am bidding on an '84 300D non-turbo stick. It apparently starts and runs fine but will not shut off. The interim method is to stall it. Owner says this is due to a vacuum leak.
Does this sound right? I just want to be sure it can't be a defective fuel pump ($$$).
I have to decide what to do in the next few hours so any help would be much appreciated!