my truck is idleing rught and surges at stop lights to the point that i have to push the brake thru the floor. the dealer said that i need to replace; fuel pressure regulator, 4 glowplugs (right side), 4 injectors (right side), egr valve, egr sensor. when they did there tests they said that the flow rates checked good so the injectors arent under warranty, but i have high injector pressure. do you think that just the fuel pressure regulator will take care of most of the problem. no tuners yet just a 5" exhaust on it.
2003 2500HD 6.6L DMAX/ALLISON LB7
5" TURBO BACK EXHAUST
DAILY DRIVER 6-8MI TO WORK