2006 CHEVROLET SILVERADO 3500 Engine Problems

2006 DURAMAX LBZ. FROM NEW TRUCK INTERMITTENTLY HAS CODE P003A - TURBOCHARGER BOOST CONTROL POSITION NOT LEARNED, P0087 LOW FUEL PRESSURE AND CHANGE FUEL FILTER DISPLAY ON DASH. TRUCK IS TOTALLY STOCK. FIRST COUPLE OF TIMES WHEN AT DEALER THEY WOULD DO DIAGNOSTICS AND CHANGE FUEL FILTER SAYING THAT WAS IT AND THEY WOULD RESET ALL CODES. NO DRIVABILITY ISSUES WHEN THIS HAPPENED. RECENTLY (AUGUST 5, 2014) WHILE TRAVELING PULLING A TRAILER TRUCK WENT INTO DERATE/LIMP MODE (FIRST TIME) ALL CODES RETURNED. TOOK TO DEALER, CHANGED FUEL FILTER AND RESET CODES NOW IT IS HAPPENING ABOUT WEEKLY OCTOBER 1, 2014 TOOK TO DEALER RESET CODES DID NOT CHANGE FILTER AS IT WAS JUST DONE AND THEY DID NOT FIND ANYTHING WRONG WITH FUEL. (MILES 94000) DEALERSHIP SAID EVERYTHING CHECKS NORMAL AND CHEVROLET DOES NOT SHOW AND BULLETINS FOR THIS ISSUE. *TR

DURAMAX DIESEL. CHECK ENGINE LIGHT CAME ON WHEN STARTED. INVOICE STATED CODE WAS: "CHECK ENGINE LIGHT IS ON. THE VANES INSIDE AREN'T WORKING. P2563=TURBOCHARGER BOOST CONTROL. COMMAND SOLENOID WITH TECH2, WON'T OPERATE SOLENOID NOT OPERATING. REPLACE SOLENOID AND RETEST. SOLENOID NOW OPERATES BUT TC VANE PLACE STOPS/STICKS AT 69% AND WON'T MOVE. REMOVE AND REPLACE TURBOCHARGER POSITION SENSOR TO INSPECT. VANE CAM WON'T MOVE. TAC CASE #11223434. SEE RO FOR DETAILS. REPLACE TURBOCHARGER, CLEAR DTC, RELEARN TC POSITION AND RETEST." TURBOCHARGER REPLACED UNDER ORIGINAL WARRANTY WITH $100 DEDUCTIBLE. *TR

DURAMAX DIESEL TURBOCHARGER REPLACEMENT. SECOND IDENTICAL OCCURRENCE, SEE ODI NUMBER 10522941. WORK ORDER STATES "CUSTOMER STATES THE CHECK ENGINE LIGHT CAME ON THIS MORNING. ADVISE. DTC P2563=TURBOCHARGER BOOST CONTROL. SYSTEM TEST FOUND TURBO VANE STICKING IN TURBO. CONTROL SOLENOID AND POSITION SENSOR OPERATING. REPLACE TURBOCHARGER AND ALL NEEDED SEALS AND GASKETS. REPROGRAM ECM AS NEEDED. FILL COOLING SYSTEM." THIS SECOND P2563 TROUBLE CODE AND TURBOCHARGER REPLACEMENT, 28,342 MILES SINCE THE FIRST REPLACEMENT, COST ME $2,889.74. THERE SEEMS TO BE A TREND OF THIS SPECIFIC FAILURE. *TR