PSD & 2 Strokes of BAD LUCK

[A-1 COLLISION]

I'll be damned!! If it were'nt for bad luck, I wouldnt have any luck at all! I have 2 PSD wreckers. My 550 went down a few weeks ago with the same damn problem as my 450 did last night. Now I have no trucks at all. I have spent 4500.00 in the past month on the 550 chasing the same problem. I gave up and parked it til I got more money. Now I cant afford to fix it nor park it! I NEED HELP!!!!

Here goes: Both trucks a blowing white smoke. The 550 would puff out a bit then die going down the road. Try to start it back up and it'd be fine. No smoke,ran great. Later on, puff gray smoke, feel like you ran through a lake on the road then when you made it through, it ran fine. The last thing it started was come up to a red light, puff smoke die. Every red light or stop sign. Restart, it'd be fine til the next. The mech shop has: replaced temp sensor,ICP sensor, EBP sensor, actuator solenoid & harness, ductwork to inter cooler, wastegate actuator, 2 connectors,CPS,water/fuel seperator housing and cap,cam sensor,oil pan gasket, oil & filter. The did several diagnostics on just about everything including fuel pressure test. The emptied the fuel out of the w/f seperator and the fuel was black. They are telling me injector "O" rings and about 3k to fix!!!!!

On the 450: It blew out white smoke and ran HORRIBLE at 10 mph the whole 10 miles back home. It wont start at all today. Anyone got two matches???
Sincerely, Super FRUSTRATED!!!!