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02-03-2007, 12:12 AM | #28 | ||
2007 Ford Focus Zetec
Join Date: Nov 2006
Location: Sydney, Australia
Posts: 431
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Possible causes for engine pinging/knocking
* too-lean fuel/air mixture (not enough gas for the air present) - Clogged Fuel Filter/Injectors/Lines * incorrect valve timing - Possible * engine cooling system inadequacy - I doubt this very much! * high intake-air temperature - Intake manifold is plastic, and is situated at the front of the car, and would be a lot colder than other cars. Remove the air filter restrictor to let the engine breath properly. * driving in too high a gear - Come on! Drive properly. * excessive carbon deposits - Drive the car a little harder * poor combustion chamber design/shape - If this was the case, the Mazda 3 would also be experiencing this same problem, Go Volvo! : |
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