Hi Guys,
I have a late 2012sr D/C 3.0TD auto with almost 100k on the clock,
I have been hearing what I think is what you fellas are describing but I'm not sure. this is my first lux and i really like this Ute however this rattle is driving me insane, sometimes i think i can hear it worse than others but again am not sure if the noise I'm hearing is the light load rattle or something more sinister, iv had the car for about a year and a half, and in this time cant say weather the noise has gotten worse or I've become more sensitive to it. to me it sounds like pre ignition in a petrol with the timing being too far advanced, I hear this noise from about 1200 rpm all the way up to about 2400rpm with it being quite prominent at cruising speed, I had the valve clearances done or not done but was certainly charged for the privilege of having the car overnight by Toyota at 80k, Oil screen in sump looks clean though drain hole, Have cleaned MAF sensor & MAP filter, EGR Reads OK on EDS scanguage, it seems to make no difference hot or cold, fuel suppliers seem to have no impact on it although it generally gets Caltex Premium, 2 Stroke oil in the fuel doesn't quieten it down, different engine oils seem to make no difference, it gets Dello 400. I'm currently running two products from Cost Effective Maintenance in the fuel being the CRD fuel enhancer & FTC Decarbonizer although currently on the first tank of juice since adding these products & cant say i notice any difference. fuel economy seems pretty good to me with the average being between 9-10 ltrs per 100Kms with a mixture of highway, around town and off road use. The ute seems to have about the same amount of poke as any other non modified hilux i have driven, doesn't blow any smoke hot or cold.
Apologies for the long winded post has anybody found a definitive cause of this noise?
Also the next step is to have it looked at by a diesel expert however with my work i often get thrown on a plane at very short notice with no idea when I'll be back, making it very difficult to book it in somewhere.
Are there any any Members is the south Brisbane / Bay side area with techstreem or similar who would be willing to donate some of their valuable time to plug the old girl in to check feedback values ect so I have an idea of what is going on with injectors and such. perhaps in exchange for some frosty amber fluid of their choosing?
any help, suggestions, advice or info is greatly appreciated
Cheers. Ben