Why does my air conditioner blow out in one direction?
If the air conditioning in your car only blows out in one direction, such as the defrost, or at your feet, or head, and no matter what way you turn the knob it always stays at that one particular setting, you need to change the A/C Control Unit. (The potentiometer has gone bad.) This is an easy fix.
Where is the mode actuator on a 1995 GMC c1500?
This 1995 GMC C1500 came in with the complaint that the air would blow from everywhere except the front vents. In using the controls, the air flow would adjust from the defrost to the floor. All other functions were okay as well. The mode actuator is located under the driver’s side of the dash, above the gas pedal.
Why are the air vents on my car not working?
If you can hear a hissing sound when the car is running from under the dash then vacuum is escaping. This kind of system also uses a check valve which will allow the vent system to engage the defroster when travelling up a hill when engine vacuum is low.
Why does my car’s climate control stop working?
A climate control system can stop working after a battery replacement as the control prompt of the system is lost and needs to be rebooted by removing the defroster/heater fuse for a period of time and then reinserted. On older cars a vacuum line can crack allowing vacuum to escape rendering the vacuum vent control servos non-operative.
Why does my GM Truck AC keep blowing out?
The 1995 and earlier have a different circuit board layout, the transistor numbers and concept should still apply but the the locations shown in the video will be different. If you find that the transistor keeps blowing out after replacement, then its because of too much current passing thru due to a short to ground in the circuit.
Why is no air coming out of my dash vents?
I can only get air to blow out of the defroster vents or the floor vents, no matter if i use heat or A/C. I have heard some people say it is probably a vaccum hose issue.
Why are the air vents on my car stuck?
This can happens due to a surge or spike in the cars electrical system. Before going too far with any repairs it can be a good idea to remove the climate control fuse and allow the system to power down. When the fuse is reinserted it will allow the system to reset and regain its logic and start working again.
Why are the heater controls on my truck not working?
Went out to start the truck and the heater controls were black wont come on no heat or ac. I have checked the fuses all good I have also put two new controls in and nothing.