About searching
  1. The GM 6.5 diesel DS-4 OBD-II system

    The GM 6.5 diesel DS-4 OBD-II system The Stanadyne DS4 injection pump is the electronically operated version of the DB2 mechanical pump on early 6.2 Liter GM diesels.  It can be finicky if you mix and match different DS4 units with different…

  2. ANSWER: The Lift pump of the GM 6.5 diesel DS-4 OBD-II system

    ANSWER: The Lift pump of the GM 6.5 diesel DS-4 OBD-II system Starts but immediately dies . . .  won't accelerate strongly . . . driving and it cut out but will start again . . . . hard to start in the morning - skip starts requiring a lot of…

  3. ANSWER: Cut-outs of the GM 6.5 diesel

    ANSWER: Cut-outs of the GM 6.5 diesel The 6.5 GM turbo diesel ECM / PCM has a lot of  software issues, but the biggest frustration is the unexpected cut-offs of the engine These can be primarily  caused by the lift pump and its fuel…

  4. ANSWER: Mechanical Injection GM 6.5 diesel

    ANSWER: Mechanical Injection GM 6.5 diesel Yes you read right - mechanical injection 6.5 GM Diesel - it could be a best answer to reliability