The 1966 Mustang is a classic car that has been loved by many over the years. It’s no surprise that enthusiasts and collectors still seek out this car today. One of the important aspects of maintaining a classic car is keeping the wiring in good condition. In this article, we will discuss the wiring diagram for the 1966 Mustang heater, including how to troubleshoot common problems and FAQ.
Heater Wiring Diagram Overview
The heater wiring diagram for the 1966 Mustang is relatively simple. The heater fan motor is powered by a 12-volt, two-speed fan switch. The switch is located on the lower dash panel, below the radio. The heater motor is ground through the blower motor resistor. The resistor is located on the passenger side of the heater box, near the firewall. The blower switch also powers the heater control valve, which controls the flow of coolant through the heater core. The switch is located on the heater control panel, which is located in the center of the dash.
Heater Wiring Diagram Components
Here is a list of components in the 1966 Mustang heater wiring diagram:
| Component | Description |
|---|---|
| Fan Motor | 12-volt, two-speed motor that powers the heater fan |
| Fan Switch | Located on the lower dash panel, controls the fan speed |
| Blower Motor Resistor | Grounds the blower motor and is located on the passenger side of the heater box, near the firewall. |
| Blower Switch | Located on the heater control panel, powers the heater control valve |
| Heater Control Valve | Controls the flow of coolant through the heater core |
| Heater Control Panel | Located in the center of the dash, controls the temperature and vents |
1966 Mustang Heater Wiring Diagram
Here is the wiring diagram for the 1966 Mustang heater:
Common Problems with the 1966 Mustang Heater Wiring
As with any classic car, the heater wiring on the 1966 Mustang can become brittle, corroded, or damaged over time. Here are some common problems with the heater wiring:
Blower Motor Does Not Work
If the blower motor does not work on any speed, the first step is to check the fuse. If the fuse is good, check the switch, blower motor resistor, and blower motor. If any of these components are faulty, replace them as necessary.
Heater Control Valve Does Not Work
If the heater control valve does not work, check the switch and valve itself. If either is faulty, replace them as necessary.
Heater Core Leaks
If the heater core leaks, it will need to be replaced. This is a common problem with classic cars, as the heater core can become corroded over time.
Heater Control Panel Does Not Work
If the heater control panel does not work, check the wiring connections and fuses. If they are good, the control panel itself may be faulty and need to be replaced.
Frequently Asked Questions (FAQ)
1. Where is the blower motor resistor located on a 1966 Mustang?
The blower motor resistor is located on the passenger side of the heater box, near the firewall.
2. How do I troubleshoot a heater control valve on a 1966 Mustang?
If the heater control valve does not work, check the switch and valve itself. If either is faulty, replace them as necessary.
3. How do I check the fuses on a 1966 Mustang?
The fuses on a 1966 Mustang are located on the fuse panel, which is located on the driver’s side, under the dashboard. Use a test light or multimeter to check the fuses for continuity.
4. How do I replace the heater core on a 1966 Mustang?
Replacing the heater core on a 1966 Mustang can be a difficult job. It involves removing the dashboard and heater box. It is recommended to have a professional mechanic perform this job.
5. Can I use modern wiring on a 1966 Mustang?
Yes, modern wiring can be used on a 1966 Mustang. However, some enthusiasts prefer to keep the original wiring for authenticity.
Conclusion
The 1966 Mustang heater wiring diagram is an important aspect of maintaining this classic car. The wiring system is relatively simple, but can become damaged over time. Troubleshooting common problems and replacing faulty components can keep the heater working properly. If you are unsure about any aspect of the wiring system, it is recommended to consult a professional mechanic. Happy motoring!
