Cache the AC running in your Toyota Highlander during flaming summer months.
Troubleshooting any problems in your Toyota Highlander's AC process before they be remodelled further big can be a absolute worth saver. Problems with the air conditioner are usually relatively light to diagnose, if it is an nut with the valve authority or a damaged fuse. Before captivating your vehicle in to the Toyota dealership, there are a scarce basic troubleshooting steps you can lope on ice on your own.
Instructions
FUSES
1. See the fuse box for any blown fuses. The fuse box in the Toyota Highlander is to the left of the instrument panel, last the inconsequential storage compartment.
2. Pop the compartment elsewhere and interpret the schematic on the inside of the panel door for directions on fix the fuse comparable to the AC method.
3. Alternate the fuse with another of the equivalent amperage adjudjing whether the metal strip inside the fuse is broken.
13. Start the engine and check the two AC hoses near the firewall. The AC hoses protrude from the firewall and are roughly the thickness of a regular garden hose. The firewall is the metal divider between the engine and passenger compartments.
Trial provided the controls are functioning prerrogative. Transform the controls Whether they are loose or laborious to movement.
6. Listen for the fan to switch on. Provided the fan does not actualize to spin, a fuse may include blown, or the fan may be defective.
AC Pressure
7. Research for sufficient impact in the AC operation. To effect this, remove the brunet caps from the low and great side supply ports on the AC unit.
8. Screw the dispirited hose from the AC check gauge to the low-side assistance Harbour and the blush hose to the high-side advantage port.
9. Take a pressure reading. The pressure reading should be between 50 and 80 PSI. Have a qualified AC mechanic investigate further if the readings are out of this range. The AC compression test gauge will automatically take the reading and has a window that displays the result.
AC Compressor
10. Check under the hood to see if the magnetic clutch connected to the AC compressor engages. You will be able to see and hear the clutch turn over. If it does not, the system may be low on refrigerant. Have a mechanic refill the system. The AC compressor is to the right of the engine block and resembles the alternator with a drive belt attached to it.
11. Take the car to a mechanic for clutch repair. The clutch will need to be replaced if it is receiving voltage but still not engaging the compressor.
12. Take the car to a mechanic for a compresser shaft repair. If you notice leakage around the compressor shaft seal, it will need to be replaced.
AC Hoses
AC Controls
4. Turn on the engine, the AC and the blower fan.5.14. Place your hand on the AC hoses. They should both be warm to the touch; however, one should be noticeably cooler than the other.
15. Replace the valve control if the two hoses are the same temperature. Have a qualified mechanic do this for you.
