What are the reasons for the air pressure gauge not pumping air?

[LaNora]

It may be due to the softening of the built-in spring in the air pump over time. Below are the reasons why the air pressure gauge is not pumping air: Softening of the built-in spring in the air pump over time: When the pressure in the air reservoir reaches a certain level, the softened spring cannot rebound due to the counter pressure from the air reservoir. This issue typically limits the pressure to 4-6 kg. Clogged air pump tube: If the tube is clogged, it's easy to check. Simply disconnect the air pump tube from the dryer, start the pump, and if black smoke-like substances come out of the tube, it indicates a clogged air pump tube. The solution is to replace the air pump tube. Air leakage in one of the four circuits: The four-circuit protection valve automatically closes. This issue is easy to identify by checking if one needle on the pressure gauge can reach 6 units of pressure while the other needle shows no pressure at all.

[OAddyson]

When the air pressure gauge fails to inflate, after years of driving experience, I've summarized some common causes. First, the hose of the air pump might be loose or have holes, causing air leakage; check if the hose is aged or cracked, and ensure it's tightly fastened to the valve. Second, the valve core might be stuck or clogged with dust, preventing air from entering; try cleaning it with a fine needle. Third, the air pressure gauge itself might be faulty, such as a stuck needle or a malfunctioning digital display; testing with a spare gauge can help diagnose the issue. Additionally, severe internal tire leakage may prevent air retention; spray soapy water around the valve to check for bubbles. Lastly, power issues with the air pump or a failing compressor could also be the cause; listen to the machine's sound to determine if it's working. I recommend starting with simple checks, avoid forcing inflation for safety, maintain tools regularly to prevent rust, and seek a repair shop if all else fails.

[Betty]

DIY car repair is my hobby. When the tire pressure gauge fails to inflate, I excitedly investigate the causes: worn tube connectors are a common issue—check for air leaks by applying soapy water and looking for bubbles; if the valve is clogged with dirt, use a small tool to clean it; or if the pipe is corroded and obstructing airflow, replace it with a new one. If the air pump itself is weak, listen for a faint sound, which may indicate motor issues. Gauge failure is also common—try replacing the battery if it's dead, and keep moisture away from digital displays. For tire problems like internal nail punctures causing leaks, don't force inflation if pressure won't rise. I often use backup equipment for cross-testing and apply grease to valves for corrosion prevention during routine maintenance. Choosing reliable tools reduces hassle. Timely fixes save a lot of trouble.

[KarterMarie]

When the pressure gauge doesn't show the air volume, I get confused. It might be due to the valve not being aligned properly, resulting in poor sealing—air leakage is quite common. Wrinkles or holes in the hose can also cause this; try reconnecting it at a different angle. Another possibility is that the pressure gauge itself is faulty—either the sensor is inaccurate or the needle is stuck, causing the reading to stay unchanged. It could also be due to a significant tire leak; check if the valve stem is loose or dirty. Try restarting the air pump; if that doesn’t work, look up suggestions online, which might indicate a system blockage requiring cleaning. If you still feel clueless, borrow tools from a neighbor to test or go directly to an auto repair shop to consult an expert—it saves time and avoids unnecessary hassle. Don’t overlook safety; be careful when inflating.