Question

 How to Replace an Auto PCV Valve?

Answer The "PCV" in "PCV valve" stands for "positive crankcase ventilation." During normal operation of an internal combustion engine, some combustion gases escape past the piston rings and enter the cran... Read More »
http://www.ehow.com/how_6188656_replace-auto-pcv-valve.html

Top Q&A For: How to Replace an Auto PCV Valve

How to Clean an EGR Valve on an Auto?

The exhaust gas recirculation valve, referred to as the EGR valve is an important component within your vehicle's exhaust system. The valve has the responsibility for directing exhaust into the eng... Read More »
http://www.ehow.com/how_6164281_clean-egr-valve-auto.html

Auto A/C Expansion Valve Troubleshooting?

In an auto compressor, liquid refrigerant under high pressure circulates to the auto air conditioning (AC) expansion valve, which removes pressure from the refrigerant to allow it to expand and con... Read More »
http://www.ehow.com/facts_7896041_auto-ac-expansion-valve-troubleshooting.html

How to Remove an Auto Tire Valve Stem?

A tire valve stem is a one-way valve that allows air to enter a tire but not exit. Depressing the center pin of the valve stem opens the valve, allowing air to exit an inflated tire. Air can leak a... Read More »
http://www.ehow.com/how_7304671_remove-auto-tire-valve-stem.html

How to Diagnose Auto A/C Expansion Valve Probe?

When liquid refrigerant is forced through a restricted opening, it changes from a liquid to a gas. This change of state causes the refrigerant to become cold, and as it passes through the system, i... Read More »
http://www.ehow.com/how_5685752_diagnose-a_c-expansion-valve-probe.html


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