bob_the_welder
Member
gday all, just wanted a few ideas/feedback on new noise in my ol ZD30. Im running a crosscountry cooler and a 80 series airbox but all that is unrelated cos we have done a 22,000km lap of Aus towing 2ton of camper with the changes. couple w/e's ago hooked up the camper and headed off, on way home the wife was driving and I noticed a weird rattle/metallic/tinking kinda noise as she was changing from 4th to 5th and again in 5th as she accel for a hill etc. Noise seems to come in at about 2650rpm and seems to be caused by throttle percentage/boost amount, i.e gentle throttle application doesn't seem to cause noise. can get it to do it accel hard in 3rd, but really its just before 80km/hr and around 100km if u go to accel for a hill or overtake, back off the throttle a little noise drops out and it will still accelerate. My fuel consumption is up a little and catch can seems to be getting bit of extra oil in it of late. The 8yr old can hear from backseat so its not like you really have to listen for it lol. It feels like it comes in at peak boost. She has done 20600km and new injectors at 170k. booked in at diesel specialist and having a run on dyno and getting turbo checked cos she sucked a bit of dust thro cheap repco filters up the Cape, and ideas appreciated.