91 Mercedes 350SDL will not start! Help Please?
we have had the car a few weeks and have had no problems with it at all. everything works and it starts right up and shuts down evertime like it is supposed to.
My wife was driving the car on empty (reserve light on) and she stopped at the mall, for about an hour. she went back out to come home, backed up a few feet, it died and it would not start. thinking it may be out of gas we had it towed it to the gas station across the street and filled the tank up; no change. Towed it home, and have tried swapping filters, getting new lines and new clamps. Even tried the injector purge/clean instructions i found on the internet, and it still would not start (with just the purge tank hooked up. completely bypassing the gas tank and all its lines!)
the only time it tries to start It just starts after sitting overnight for about 10 seconds and sputters and coughs to it's death. Verified all the vacuum lines are connected and the hoses are in great shape. No leaks from the bypass lines at all or any where else I can see. I bypassed the fuel thermostat thinking that would make the fuel too warm in the 107F heat. I tested the automatic primer pump and it seems to be pumping , although i connot get any reading of pressure from the pump when cranking the engine. i do get a little fuel at the injectors when i crack the lines open and crank the engine over.
Any ideas what to test next?
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