2000 Pontiac Grand Prix "loud noise turn ac heater" Questions

...Loud noise when turning on the heater it only works on the 5 setting and when it works i makes a loud noise that shakes the dashboard what should we do. also AC does not work could it be the switch ...

acura ac/heater makes loud noise when turned on also does not work More than likely it is the blower fan in the heater/ac box

loud knocking noise - especially when the AC is on low. What could this be? Is it noisy with only the blower fan on or does the A/C have to be on to get the noise. Try using the heater only and see if

...loud tump and then noise is gone Your AC compressor on the engine is the likely problem, either the pump is frozen up or the front bearing is frozen up, don't run the system or the belt will ...

...ac fan on Mars a loud noise what could it be Nothing Inspect the blower fan assembly. Either something is in the fan or the bearing or bushing is shot. Replacement blower assemblies aren't

...noise when turn on heater/ac fan on 2000 pontiac bonneville fan works on all speeds but has loud vibrating noise either fan motor is going out ar broken fan wheel, or possibly loose fan

...noise compressor I have a 2005 Ford Freestar. When I turn on the heater or the AC I hear a loud blowing noice from the motor. The sound seems to come from somewhere near the intake manifold. It will ...

...loud whistle or whine after turning key on coming from driver side in the dash with all accessories off. any ideas? this noise starts as soon as you turn the key on. inside the car coming from the ...

...we could hear an intermitant loud noise. sounds like the heater is drawing down the battery. Which would be a battery or alternator problem most likely. If not check the amp draw of the blower motor

...loud noise when the heater or the AC turns on but the heater and AC works need help -Depend on what sound like...? It could be loose fan, some object hang in to the fan, or dry leave or may be some ...