Compare Infiniti Fx loss of power repair quotes from specialist garages

The FX, a luxury crossover introduced in 2002, is known for its bold design and suits drivers for whom luxury and style are priorities. Infiniti calls it "a sports car at heart", with top speeds ranging from 130 to 155 mph and a 0-60 time of five to seven seconds, depending on which engine configuration you choose.

The FX has connections to motorsport, having been used as an F1 safety car, and there is also an FX Sebastian Vettel Edition, named after the F1 champion. Common problems with the FX include worn and damaged wheel bearings (often indicated by a humming or grinding sound), a noisy timing chain and transmission issues.

Few things are as frustrating for a driver as realising your car doesn't have as much power as it should. Small changes in performance matter and are most noticeable during acceleration. Your car may suddenly lose and then regain power or feel sluggish all the time; either way, it's clear there's something wrong.

A loss of power can often be traced back to a problem in the fuel system, such as a clogged fuel filter, faulty injectors or a malfunctioning MAF sensor. Running a cleaning additive through the system every so often can help prevent issues like these from developing. However, the fuel system isn't always to blame.

As discussed in this guide, an ECU error or a clogged catalytic converter can also make your car lose power - that's why you should take note of any other symptoms that could help pinpoint the cause. These may include unusual exhaust smoke (blue, white or black) and rough idling.