Darn it I got it .

[Grizz272]

I got the DMAX tick It showed up at the diesel pump today, Darn. I Changes to Rotella T on wednesday and towed my camper 500 miles round trip. Filling up after unhitching the camper I went to fill up and I noticed the tick.

Grizz :mad:

[David Proske]

My 03 ticks as well. Somedays it ticks like crazy, somedays not at all....

[TPIJeep]

Whats the deal with that? Where is it coming from, mine will do it on and off also..

[britannic]

It's generally believed to be caused by cavitation/air bubbles in the oil galleries. The high oil pressure (60psi) and piston oil cooler nozzles are the likely source. Providing it sounds like someone typing and not a regular half/full engine speed regular clicking, ticking or tapping, you can ignore it.

[svpdiesel]

Mine had it, and now its gone, at 12k mi. Switched to Mobil Delvac-1, and that seemed to help, but could be coincidental. Anyway, don't sweat it- it'll probably go away by itself.

[a64pilot]

I'm at 60,000 and it still comes and goes, seems to be worst with fresh oil.

[GMCTRUCK]

Mine did it new but stopped after 3k miles. Rotella 15-40. Friends 03 with 10k miles still does it.

[kraemerf]

My '03 has never had the tick. 13,600 miles.

[SparkyTX]

So that's what that is! I just picked my 03 up Saturday. It was ticking on an uneven rhythm. Nothing major. As a matter of fact, it almost sounds like a relay flipping back and forth or like the ticking you would hear from a spark plug, but without the consistent rhythm of either of those.

Being my first diesel, I decided it must just be a sound the engine makes as nothing seemed odd per the guages. I was even considering taking it to the dealer to have them check it out, but didn't want to sound like an idiot.

So you think it will go away? I have 212 miles on it and it is still doing it. :D

[Joe Duffiney]

Not to worry . 99% of all the D-Max's on the road tick. I have noticed it does it when I first change the oil after 800 to 1,000 miles it goes away.