I bought this car about 3 weeks ago. It has around 180,000 miles on it. I'm new to diesels, but when I was checking out the car everything looked and ran good( no blowby with oil cap removed). The seller lived about an hour from me drove it all the way home no problems at all. Temp Guage stayed steady around 90, oil pressure was good, great highway cruiser.

I have a lease car that this will hopefully be replacing so for the next week after I get it home I would take it around the neighborhood on short trips. This way I could work out any issues that might be present before it's my daily driver. Well an issue definitely appeared. I went down to my garage one day to start it and it's started right up like normal ran fine for a few seconds then stalled out. I tried it again same thing. I tried starting it and giving gas right away and it would just bog down and stall. I should mention this started during a very cold stretch, however my garage is below ground so it rarely gets below 32 degrees. This issue has continued unchanged even with the warm up in temperature.

I'll list the things I have done and tried including the one that has me really stumped.

-1st thing I did when this happened was look around the engine for anything loose. I did find a line from the alda was disconnected. Could have been before because it was hard to see. I hooked that back up.
- pulled gas cap no change
-pulled oil cap no change
-looked for fuel line leaks and didn't see anything(still could be of course)
This lead me to try a diesel purge so I could isolate a fuel leak if there was one. This is where it gets weird first few tries it did the same start then stall but then It would idle a little longer then stall. Finally no stall running good. I run the engine at different speeds like your suppose to and everything sounds great (actually sounds even better the longer the purge runs) I shut it down after the purge was almost gone. Bottle was filthy! So I think this might have solved it.
-I wait a couple days for new fuel filters
When fuel lines were off I used low pressure air to blow back into tank. In case it was a plugged line or strainer.
-hooked everything up with new filters
Fired it up and it does the same thing starts then stalls
-switched fuel lines so supply was on return and return on supply same thing happens at the same time. If the was a leak in one of lines going to tank wouldn't it stall a a different time with the lines switched?
-now I'm thinking bad fuel so I get some fresh diesel from a busy station and hook up a bottle in the engine compartment and hook it up exactly the way I did withe purge. Fire it up and it does the same start stall thing. So is there a reason diesel purge will run in this set up but not diesel fuel? ??
-so at this point I'm really stumped. To eliminate any other possible air leaks I removed the fuel thermostat from the system by connecting the supply line straight to the lift pump. And of course no change same start stall.

any guidance you could give would be greatly appreciated!
Thanks