Hello; I have a 2.6 w/163 k with the following repairs : head off valve grind, seals, guides,chain, plugs ,fuel filter, crank angle sensor and MAAB (fuel pump relay box) replaced.

Intermittently the following occur: Hot soak restart stall for first 3 min of operation-then fine (hasn't done this for a month) intermittent surging - missing under load .

sounds like an lifter is pecking when warm and uses a quart of oil 900 miles.

No oil leaks!

My last gas Benz was a 66 230s purchased at the factory and still have 4 diesels in the fleet. This 2.6 is making me nuts!

help..ideas..? Does it have a pre pump in the tank?