Whistle in engine
Automatic diesel Santa Fe 05. Engine replaced 18months ago due to timing chain going.
Low whistle from engine while driving. Losing oil but no evidence on ground. Also brakes
make rumble sound and brake kicks back under foot while braking at low speed. Also
while pulling a horse on motorway it seemed to lose power as took a while to accelerate
with foot to floor. Never had problem towing horse before that. Garage says it's the rings
and to get rid of it. Any other ideas.