Isuzu Vehicross Pcv Valve
Top Isuzu VehiCROSS PCV Valve Problems and the Reasons behind Them
Did you know that your Isuzu VehiCROSS has its very own recycling machine? Apart from your exhaust system, your Isuzu SUV has another eco-friendly component in the form of the positive crankcase ventilation valve or PCV valve. This valve is tasked to re-circulate or recycle the unburned or partially burned gases and fresh air, so they can be reused in the combustion chambers. In its best shape, your Isuzu VehiCROSS PCV valve increases fuel efficiency and enhances your vehicle's accelerating power. But if the PCV valve goes bad, your fierce SUV is prone to having these problems:
Poor engine performance
If you are experiencing some negative changes in your Isuzu VehiCROSS' engine performance, you may want to check your vehicle's PCV valve. A defective Isuzu VehiCROSS PCV valve has the tendency to not close properly. This causes excess oxygen to go inside the combustion area where it alters the proper air to fuel ratio. Changes in the air and fuel mixture often results in "lean" or "rich" fuel mixture. These mixtures are detrimental to your engine's health because they often lead to frequent engine stalling, poor or slow acceleration, rough idling, misfires, and total engine failure. Once you see any of these signs on your SUV, you must replace your PCV valve as soon as possible.
Clogging and oil leakage
Oil leakage is another sign of PCV valve failure. When the valve fails to release the excess pressure in the crankcase, leaks in the hoses and connections attached to PCV valve may occur. This will cause the oil from the engine to enter into the vehicle's air filter. Although the air filter can still be cleaned, it is advisable to replace the damaged PCV valve to prevent further air filter contamination. You also need to check the seals and gaskets on the engine for damage or leaks and replace them if needed. Clogging in the PCV valve, on the other hand, can be detected by removing it from the engine block and shaking it back and forth. If you hear rattling noises as you shake the valve, it is absolutely clog-free. But if the valve produces no noise while you shake it, you should replace it immediately.
Other troubleshooting tips
Another way to test if your Isuzu VehiCROSS PCV valve is in excellent condition is by blowing compressed air through the valve's opening. If the air was able to pass through in just a single direction, your PCV valve is fine. However, if the valve lets air pass through in both directions or if there's no air at all, replacing your stock is absolutely necessary. Aside from the symptoms that were mentioned, you also need to watch out for other signs of PCV valve failure like physical damage, decrease in gas mileage, and increase in crankcase emissions.