Loud Tappet / Valve Noise from GDE Tuned 3.0 EcoDiesel
I have recently been hearing a louder tappet noise / valve tick coming from the engine when it is cold, but only during accelerating at certain RPM's. It seems to be only happening about 1000-2000 rpm's while accelerating and goes away after the engine is at full operating temperature. I have never heard this before, and never heard it last winter. I live in AZ, so it isn't like it is that cold when starting. Has anyone noticed this before? I am GDE tuned diesel and I don't know if the GDE tune has anything to do with it. It has been tuned for 5 months now, and I just started noticing this in the last few weeks. Nervous to take it to the dealer because I don't want them to say it is due to the GDE tune and notice the preinjection is disabled. Any advice you can offer would be appreciated. Thanks in advance guys.