car10001 52 Posted November 8, 2018 Hi just a quick question what causes a ba to whistle on acceleration, alternator or belt doesn’t seem to squeal when using headlamps or loading electrical system, engines pretty quiet someone just wondered thanks Share this post Link to post Share on other sites
gerg 10,871 Posted November 8, 2018 Could be something in the exhaust? Vacuum leak? Power steer pump? Hard to diagnose by a second-hand description. Sent from my CPH1607 using Tapatalk Share this post Link to post Share on other sites
car10001 52 Posted November 8, 2018 Doesn’t seem to be major drove for about 15-20 mins yesterday and parked it then it started this morning so can’t be charging system then? Share this post Link to post Share on other sites
bear351c 10,260 Posted November 9, 2018 Check your belt tension, and idler pulleys first. Share this post Link to post Share on other sites
deankxf 20,231 Posted November 9, 2018 if it's doing it at idle, you can tip a bit of water on the belt and see if it goes away... might be the belt only Share this post Link to post Share on other sites
SPArKy_Dave 8,831 Posted November 10, 2018 A blocked BTR auto trans filter, can also make a whistling noise on acceleration - the transmission oil pump becomes noisy like that, as it strains to move fluid around. Share this post Link to post Share on other sites