WebFeb 1, 2009 · Assuming that the cooling system operation has already been confirmed as being OK, start checking the temperature of the hoses at the control valve assembly (See Photo 8). With a dual-zone heater system, … WebJun 18, 2024 · An example of a heater control valve diagram. Some vehicles (mostly older models) have a heater control valve. As its name implies, the heater control valve controls the flow of coolant through the heater core. To have a better understanding of the heater control valve, it’s important to first know how your car’s heater works.
Most Common Causes of Low Water Pressure - Cardinal Plumbing
WebUse a pair of hose clamp pliers (green arrow). Slide the clamp away from the heater control valve. The inset shows how the pliers grab the clamp. This style of clamp requires special pliers. Standard pliers won't work. … WebAug 6, 2015 · Located on drivers side wheel well under the mass airflow sensor and associated plumbing. To troubleshoot, clamp one of the two hoses attached to the valve, doesn't matter which one (vise grips work nicely), run the a/c.. If it gets cold the valve is stuck in the open position. Replace it - not difficult and about 100 bucks for the part. See ... small college football flags
Symptoms of a Bad or Failing Heater Control Valve
WebDec 31, 2024 · In this video, I will explain how to diagnose problems with your heater control valve, fix it if possible and replace it if a fix is not possible.Heater Cont... WebNov 16, 2024 · Here is where I am on the troubleshooting of the IHKA / Heater Valve parasitic drain on my e46: Upon engine shut-down, the IHKA enters a "Service Station" mode, whereby it energizes the Heater Control valve i.e. valve closed for a few minutes. ... With the valve disconnected, I connected a test lamp to the control line. With engine … WebFeb 8, 2024 · Symptoms of BMW DISA Valve Failure. Poor fuel economy. Rattling noise coming from the engine. Loss of power at mid and high RPM’s. Lack of low-end torque. SES/CEL light and codes for running lean. The most tell-tale sign of a bad valve is a loud rattling noise coming from the intake system. some through the fire hymn