Where is the petcock on a radiator?
The petcock is usually always located in the corner of the radiator. Once located, get a pan of some sort, such as a disposable aluminum pan from the store, and place it directly under the petcock. When in place, remove the petcock and let the coolant drain into the pan.
How do you drain a radiator?
- How To Drain A Radiator: Turn off your heating.
- Turn Off Your Heating.
- Close The Thermostatic Valve.
- Close The Lockshield Valve.
- Loosen the TRV Nut.
- Loosen The Locksheild Valve Nut.
- Removing Sludge From Radiators.
Where is the drain valve on a radiator?
A radiator drain petcock is usually located above the bottom of the radiator. So even if you can open it, you’re not draining the radiator completely. That’s why shops always remove the lower radiator hose. That drains the entire radiator AND most of the coolant from the engine.
How does a radiator drain petcock valve work?
A radiator drain petcock valve, or shut-off valve, allows the radiator to be drained without removing it from the vehicle. This simple valve or bolt can be easily unscrewed to drain, then sealed back to fill.
How do you get coolant out of a radiator?
Step 6: Drain the radiator. Place a large drain pan under the radiator drain cock and open the drain cock, letting the coolant drain out of the radiator into the drain pan. Step 7: Remove the drain cock. Once the fluid is out, either unscrew the cap, twist the cap off and pull out the latch, or twist and slide out.
How long does it take to drain a radiator?
All the coolant from the radiator and lower part of the engine drains out quickly using that technique. Then the mechanic simply reinstalls the lower radiator hose and refills the system. The entire drain procedure takes about 5-mins. But what if your radiator has a drain valve?