Failed buzz test and codes
Trucks been making a "ticking" sound coming from drivers side bank. Can only describe it as it sounding like a gas engine with a loose rocker arm. only would do it between 25-45 mph at first and around 1700 rpm. Now does it at idle just not as loud as when its at 1700rpm.Tried running buzz test but all 8 cylinders failed. Tried unplugging injectors individually as engine ran but no change it sound. checked all connections to under valve harness and all seemed good.
P1670 Electronic feedback signal not detected
P1316 injector drive module codes detected
P1247 Turbocharger boost pressure low
P1248 Turbocharger boost pressure not detected
Last edited by Randee Bowknee; 01-25-2012 at 02:53 PM.