My galant makes a loud grinding sound every time i turn the heat on

SOURCE: Whenever I turn my AC or Heat on in my car, I hear a loud squealing or grinding noise...

sonnds like a loose belt. Your AC compressor activates in both positions and puts a load on your engine from having to turn the pump. If belts are tight, not over tight, apply some belt dressing to them while engine is running. Please be aware that the engine will be running and stay clear of moving parts..

SOURCE: heat in my 03 galant isnt working. Was making a

sounds like the blend door motor has failed blend door wont move and the plastic gear is bad , probablly not something you want to try to fix yourself its a pain lol good luck autodoc

SOURCE: alternator belt very loose on 2002 mitsubishi diamante

u need to tighten the belt find the adjuster and tighten a little bit

Colin Stickland

• 22516 Answers
• Posted on Nov 02, 2010

SOURCE: 2008 galant 4cyl has a loud Vibration/ grinding

in all honesty i would need to hear it to have any idea exactly what it is ,because if its an auto then it could be something with the torque converter /drive plate ,but again it could be water pump bearing or a cam belt idler pulley .You would need to ask a local mechanic to have a drive and ask for an opinion then post it on here for confirmation as to if his diagnosis is plausible and not trying to make a simple job into an expensive one.