Had recently at Jaguar workshop the 3 heater water hoses replaced, as there was a leakage.After that, on starting the engine when cold, i had a squizzing noise for the first 4 miles, then stop.My Jaguar workshop replaced then the serpentine belt, complimentary, as i complained.Still noise was there, so they replaced today the pulley, also on their cost,and now is quite, but now i get the squizzing after 50 miles per hour of speed. It drives me crazy.Any ideas?

 

Squizzing, subscribed, I want to see what the guys diagnose.

(I would have said either not bled properly, or after belt and pulley, an idler pulley was not right, then again expansion tank cap not fitting correctly).

But Squizzing is new to me.

 

Expansion Tank was also replaced with the water hoses.Its new. No water loss any more.All heater hoses were replaced.(3)Squizzing was initially on cold engine,now is not, but after the speed of 50 miles/hour.You can hear only with driver window down, how it starts at 50.

 

Problem by Jaguar workshop solved today.They allready had changed 2 days back the drive belt, tensioner pulley and noise was still there.So today they changed the idle pulley, and thats it.Noise gone.Translator was right.Thanks buddy.And all that for free, as i had payed last week $2.500 for 50.000 miles service, and new expansion tank plus changing of the 3 heater hoses with all seals around.

 

At least now you should be good in this department.

And in your climate having good plumbing, I would guess is a must.