Thread: Constant whine... Engine related?

I had this trouble with mine, turned out to be the alternator.
I would strongly suggest you remove the serpentine belt and check every thing that runs off it , as any one of them will leave you stranded until you get the new part .
Good luck

Firstly congrats on your new truck!

Does your model have aircon on a seperate narrow belt?? If so check that the main clutch pully on the AC compressor isn't really noisy, also check the two other AC pullies.

As also suggested, remove Serpentine belt and check all the ancillaries and make sure the bearings rool smoothly with no rough spots in the bearings

Cheers

Pete

hi I had the same took off the serpentine belt and cleaned it with dish washing liquid fixed it cheers

As suggested the quickest and best way is remove the belt and check each unit that runs on it for smooth rotation. Each unit must rotate with out any hint off roughness, binding or bearing movement or play, which will cause the belt to run off line, the alternator and the power steer pump should have mild resistance when turned but no binding at all. Do not leave it, check now! If ignored not only will you be stranded, the belt will shred and destroy stuff like bonnet insulation. ( dont ask how I know! )
Cheers Scott

Apologies for the very late follow up on this but, yes, it was the belt tensioner pulley. I had it in the garage late last year where the mechanic faffed about just changing the bearing but eventually, I think ended up putting a full new part in. I just had the timing belt done last month, by a different (experienced with landys) mechanic who re - replaced it as part of the timing belt change. As a slight aside it looked like the last time the belt was changed the seals might not have been done. They were pretty damn sludgey. Which makes me think the belt tensioner may not have been changed either. It's been a good learning process for me.

When you change the timing belt make sure the seals and tensioner get done at the same time.