Compare Ford Focus fuel injection system repair quotes from specialist garages

Ford was the first carmaker to introduce a vehicle assembly line, speeding up the process of production and bringing cars to more people than ever before. The brand's motorsport credentials are equally impressive. In the 1966 24 Hours of Le Mans race, Ford ended Ferrari's six-year winning streak, beating the likes of Porsche and Lamborghini to the title with an ever-popular GT40.

Jim Morrison, the lead singer of rock band The Doors, famously adored his 1967 Ford Shelby GT500, the only car he ever owned. It is a mystery to this day where the vehicle ended up after his death.

Find out the average price of a Ford service or MOT here, or read this guide to see how Ford's maintenance costs compare with Vauxhall and Volkswagen.

When you accelerate, your car's throttle valve opens, and the fuel injectors spray fuel. How and when this fuel mixes with air depends on what system is used. Petrol engines use an indirect system, where fuel and air mix before entering the combustion chamber, while diesel engines use a direct system, where air and fuel only mix once in the chamber.

Unfortunately, fuel injectors can become clogged over time, in which case you should book a petrol or diesel injector cleaning service or buy a fuel injection cleaning kit.

Signs you may need to have your fuel injectors cleaned include engine misfires, poor fuel economy, rough idling, engine stalls and leaking fuel.

If cleaning the injector system doesn't work, you may need to book a fuel injector repair or fuel injector replacement, depending on the severity of the problem. A fuel injection specialist can offer advice specific to your vehicle.