FORD > 2004 > FOCUS > 2.3L L4 > Ignition > Spark Plug Price Alternate No parts for vehicles in selected markets. How to Replace Spark Plugs in a Ford Focus. Has anyone ever seen an issue where a spark plug blows out of your engine? [scratch] Ford Spark Plug Gap Specs: SPI = 1.4mm (0.054 inch) Zetec or Is your gas mileage not what it used to be? Designed for performance enthusiasts who want extreme ignitability, improved throttle response and superior anti-fouling, these spark plugs are a great option for modified engines and... Ford Focus 2004, Platinum TT™ Spark Plug by Denso®. The Precision engineered in compliance with rigorous... Ford Focus 2.0L 2004, Double Platinum Spark Plug by Denso®. I want to change the spark plugs on my 2004 Ford Focus. Manufacturer says .050, and modification should decrease the gap size, no? With Resistor. Combining a thin-wire center electrode with a... Ford Focus 2.0L Gas 2004, XP™ Iridium Spark Plugs by Autolite®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Get Yours Today! The following guide outlines the procedure for replacing the spark plugs in the 2.0 and 2.3 liter Duratec engines found in 2004-2007 Focus models. Without spark plugs, your Ford won’t start or continue to run. 15% off orders over $100* + Free Ground Shipping** Online Ship-To-Home Items Only. Step up to Autolite. Because of the cost of iridium, the electrode is thinner, but they still deliver better power, better combustion and longer life than other plugs. Ford Model: focus Ford Year: 2004 UK/Ireland Location: Lanarkshire Share Posted September 29, 2010 Hey all, thats a nightmare. Equip cars, trucks & SUVs with 2003 Ford Focus Spark Plug from AutoZone. Precision engineered in compliance with rigorous industry... Ford Focus 2004, Laser Platinum™ Spark Plug by NGK®. Your ignition system may need repair, but before you waste... 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