bigdawg

Computer, road speed sensor was bad sending computer into default mode 50 percent power rating and vorad smart cruise had computer crazy. Dealer changed sensor and reflashed the vecm , really put the pepper on the ass ran like a scalded dawg coming home with empty trailer. Shall see tomorrow with a load but I think its fixed appreciate the help though guy's.

Look good , im at the mack dealer now gonna computerize it and find out the issue .

Will do, pan down camshaft is fine, valve train has lota of slack, 1/4 " on rockers, possible issue but cant figure out why, lifters look good, push rods look good all same length, no slack on the rockers . Still lost .

Will do, pan down camshaft is fine, valve train has lota of slack, 1/4 " on rockers, possible issue but cant figure out why, lifters look good, push rods look good all same length, no slack on the rockers . Still lost .

Will do, pan down camshaft is fine, valve train has lota of slack, 1/4 " on rockers, possible issue but cant figure out why, lifters look good, push rods look good all same length, no slack on the rockers . Still lost .

Will do, pan down camshaft is fine, valve train has lota of slack, 1/4 " on rockers, possible issue but cant figure out why, lifters look good, push rods look good all same length, no slack on the rockers . Still lost .

Will do, pan down camshaft is fine, valve train has lota of slack, 1/4 " on rockers, possible issue but cant figure out why, lifters look good, push rods look good all same length, no slack on the rockers . Still lost .

Droppong oil pan, to check on the camshaft

Ok, shop took it charged me 1300 changed a few sensors and put computer on it duchange . I have it back made a puck tested for turbobleaks, found none. Not the slightest. Tested fuel pressure 70 psi. Runs 100 mph no trailer, empty trailer and cant make 60 . Tried to make it throw some smoke shifting fast like at 800 or 1k rpm no smoke, must not be getting fuel im lost.

Well, they seem as loss as me, changing the engine speed sensor and road speed sensor . Saying they woukd like to change the other 4 injectors, and the engine is near the rebuild age. Has 642000 miles and 25k hours.

Its in the shop now, so we will see what they can find to charge me for.

no psi gauge yet, changed muffler , no boost leaks , no exhaust leaks , did not check to see if anything was wrong with injectors just they were leaking

No bubbles

Well, added new fuel suction line , still very little power . Truck wont spool out in 5th gear (6speed), cant get to 65 with an empty chip trailer. Any thoughts would be appreciated.

Well, new turbo, 2 new injectors, new check valve, and no power. Boost is at 24-25 psi under load , no more leaking injectors truck with an empty trailer flat ground (south la) grossing 32000lbs cant make 60. Fuel filter Davco 382 processor has air bubbles , tested in a bucket with another hose no bubbles. New hose is being made now , maybe the pickup is bad could figure out how to test without a new hose. Truck doesnt smoke anymore , does miss a little in the top holes, I think because its sucking air. We shall see.