Question about 2004 Kia Rio
I have the following error code P0748 Pressure Control Solenoid Valve A - Electrical ,so i need to know which valve is A and howw can i deal with
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Posted on Jan 02, 2017
This sounds like the idle air control valve. This valve sits on the inlet manifold and basicly regulated the flow of air for tickover( or idle). The usual operation of this valve is, when the engine is running at high speed the valve will be closed, when the engine comes down to idle, the main throttle butterfly will shut as you lift your foot off the pedal. The idle valve will open and give a small amound of air to the engine, just enough to run it at idle speed. These valves can stick open, therefore letting air in when the throttle is open, giving the engine too much air. WD40 is only a temporary repair untill it jams again. Best course of action is to have part replaced.
Posted on Jan 24, 2009
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