frontier 2006 LE "clang"

the sound happens *after* the shift from 1st to 2nd, within 10 seconds

And it's still on warantee.

This is just one suggestion - it could be many things:

If it is an automatic, could be that the driveplate bolts have loosened up or were never tightened properly - this is the piece that couples the engine to the transmission. If it is indeed the driveplate (also called flexplate), eventually it'll make noise continually until the bolts fall out and you won't be able to drive it at all. Not sure about a frontier, but there's usually an inspection hole at the top of the engine/tranny where one can inspect (also loosen/tighten) those bolts by turning the manually engine with a wrench.

Remco

thanks, will forward this to the nissan service dept who have kept car now several times but have no clue about a solution

but as I mentioned, the nissan service dept has no clue, they just want to keep car which of course leaves me without and is unacceptable - if they knew what to repair and had a schedule for ordering parts or special tools, fine, at least there would be a solution in sight

just having a warranty is of no use in this situation as there is no fix, problem continues each day and I may actually be causing more problems the more days I drive

will forward this to the nissan service dept, hopefully they have already eliminated this issue

can you re-write that last part? ...turning the ...bolts?... manually ... which are attached to... engine?

yes,it is automatic

thanks

I am not saying "this is it", but it is just a possibility.

The guys in that service department would most likely know how to do that as it is something they usually do to remove an engine. You basically turn the engine manually by putting a big wrench on the crank pulley. When you slowly turn that wrench, while looking into that inspection hole, you will come across the bolts that hold the drive plate to the torque converter. Ask them to make sure those bolts are properly torqued down. If the driveplate and torque converter are not properly attached, you will hear random clanging noises. There are also bolts that hold the drive plate to the crank shaft, but that those are loose is less likely (there are many of them) - one will also need to separate the engine from the transmission to get to them, which is obviously a lot more work.

Remco

will do - just a point of restament (in case this thread helps someone else with same issue later on..): the "Clang" occurs *only* after engine started and the initial shift from first gear to second gear, within about 10 seconds

the "Clang" is not random, it occurs every time, on schedule and only then

there are no other sounds and there is no "Clang" if car is stopped with engine at idle and drive resumes