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Clicking apc valve@idle=noise in engine+apc trying to control
Posted by RJ (more from RJ) on Mon, 26 Feb 2001 17:16:19
In Reply to: Clicking APC valve... where is 'absolute pressure' thingy?, Nicholas Johnson, Mon, 26 Feb 2001 10:51:00
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A clicking APC value at idle means the APC system is hearing a engine noise and it thinks it is detonation and is trying to control it by the only thing it knows how to do opening the APC value to reduce the boost.You need to find and repair the noise.It is most likely a worn timing chain set and needs replacement,check for a worn chain set.
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