My heater stopped working and I have no idea what would cause that. When you turn the switch on nothing happens. It does have the rear heater right behind the drivers head and that blower is working can you help
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The clicking is caused from a blend door motor not working properly. This motor moves a door in the heater box to control airflow. There may be 2-3 motors in the heating/AC system and one of them is causing the problem and will have to be changed
I can almost 100% guaranty the turn signal switch is the problem. Power for the brake lights starts at the brake switch. power then splits from there and the third brake light gets power directly from the brake switch. Since the turn signal and the brake lights are on the same bulb power for the brake lights is routed through the turn signal switch. the switch depending on what position it is in will allow brake power or turn signal power to there respective left or right brake/turn bulbs.
If you hold your foot on the brake pedal and wiggle the turn signal and or play with the hazard switch the brake lights will almost always intermittently start to work. this will confirm a bad turn signal switch which is pretty common on GM vehicle with this style setup.
Your turn signal switch in your sterring colum is bad. The turn signal canceler in the switch is bad causeing both brake lights to be canceled all the time. Common problem
It sounds like you don't have a ground going to those areas. I think I would check for a ground...maybe pull the fuse on the rear defroster and see if it is even a part of the problem.
Looks like the problem is in the turn signal switch. This is a common problem. When the turn signal switch goes bad it will cause problems as mentioned above by you. Replace the turn signal mechanism.
Check the contacts with the screen, as these often corrode.Also that the earth contact is good. Carefully wiggle them off, apply a thin coat of vaseline, and push them on again.
Also check the main fuse is ok. The other causes to check are that there is power to the switch, that the heater relay is working, and that power is getting through to the heater.
is the switch on dash in one piece as on these cars the bottom of the switch breaks ,you push switch to turn on a/c and turn it for the fan left is re circulate right is fan with fresh air in as well
Easy fix. The vacuum hose has come loose. Happens all the time. The hose is about 1/2" in diameter and can be found under the hood, in the middle of the engine compartment, on the drivers side. Just take a tie wrap and tighten it down over the plastic inlet.
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