I inherited my elderly dad’s 1998 Lexus ES300 a few years ago. It has only about 65,000 miles on it and I’ve never had any major engine problems. But starting about a year ago, it occasionally stalls ...

I have a 2007 Mazda 6 2-litre TS with 44,000 on the clock, which has developed an erratic idle speed when first coming onto idle from higher revs. This then smooths out to a constant level and stays ...

Why does my 1994 Mazda 929’s engine intermittently rev or surge when I first start it? This could be something to do with the engine’s idle-air control valve which plays an important role in making ...