Thread: Slight Engine Knock/Pinging
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Old 01-03-2017, 10:13 PM   #4
DZFord
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Join Date: Jan 2009
Location: Victoria
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Technical Contributor: For members who share their technical expertise. - Issue reason: LS Focus PCV Valve & Hose replacement, a very detailed write up with photos. 
Default Re: Slight Engine Knock/Pinging
Yeah you can try the Motorcraft Upper Engine Cleaner, should be sold at your local Ford spares.
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