so i put new fuel lines on my truck... primed the fuel system (2 hours later) i fired the truck up and it ran ruff so i cracked each injector till it was spraying fuel and the idle smoothed out. so i took it for a ride and ran great for about 5 min.... now it idles good but if i were to push the throttle pedal in allitle bit and then release my foot off the pedal fast the truck stalls. but it only does it in gear... in park it does not stall at all. any ideas?

My truck would do this every once in a while when it was cold out and the truck wasn't warmed up yet. I figured out the idle speed was set too low.

daveO's Sig:

98 Cummins 12v, QC, SB, 2wd, timing set to 17*, DTT 47RE, K&N FIPK 2, HTB2 62/14, ATS Arc-Flow intake, ATS Pulse Exhaust manifold, DDP High Flow Delivery Valves, DDP Stage 2 75hp injectors, 3k RPM GSK, TST #6 Plate full forward, AFC springs, AFC full forward, HX40 Style Downpipe to dual 5" Grand Rock Aussie stacks, Autometer Phantom II 2000* Pyro, 60 llb boost, trans temp.

bled the system again.... she is running like a champ now.... knock on wood!

deffinately make sure the idle is set right; this is a typical symptom of an idle setting that's too low

tower_ofpower's Sig:

One thing i learned in college: DON'T!!! stick your fingers where you wouldn't stick Mr. Happy 89' W250, full fuel 1 1/2 turns, smoke screw needs adjustment, M&H M3 fuel pin and timing spacer, 366 spring, air dog 150,3" DP to 4" DP back bully dog exhaust with the front baffle cut out. Soon to be:transmission upgade, turbo and manifold swap, and injectors.