Ask Honest John

Most recently answered unexplained noises questions
I'm getting a grinding noise from my 2008 Toyota Corolla Verso. I don't think it's the engine as the grinding/rubbing noise does not relate to engine revs and is entirely absent when driven slowly, or...
I have a 52-plate Ford Focus, but there is a whirring sound when you drive it. I've had the four wheel bearings replaced but the sound is still there. I've even tried it with the clutch in or out, but...
I have owned a series of S-Class Mercedes. At least ten in a row, all wonderful, and all petrol. Recently, against my better judgement, I bought an ex-demonstrator diesel: a S320 CDI LWB, with 9,000 miles...
I have a Mk4 Vauxhall Astra 1.6 8v. When I start it and pull away I can hear the water flow throw the heater matrix. It never loses water temperature and there is good hot air in car, no oil in the water...
We are getting a clicking noise from our 2001 Citroen C5 HDI's engine, which sounds similar to a steam engine flywheel rotating. I thought it might be the catalytic convertor, but I understand from the...
Our 51-plate Ford Mondeo has just started making tapping noises and there's a lot of smoke from the exhaust. I have been told to replace the hydraulic lifters - could it be anything else, and is this going...
We are experience a continuing groaning noise when bringing our 2004 KIA Sedona automatic to a stop. We have been back and forth to our local dealership with no joy. We have had the front discs and pads...
I have a Peugeot Partner Combi 2003 and have a knock when going onto a rough road and turning. There is only one knock but it happens every time I turn on rough roads. Just taken it for an MoT and it passed,...
My 1994 Volkswagen Golf Cabriolet clicks in reverse gear. I want to take it to a garage but all the other gears are ok and I do not want to be pressured into a new gearbox. Can anybody give me an indication...
Just noticed when pulling away and changing up the gears in my 2009 Hyundai i20 that, as I try to accelerate in second gear, there is a knock from the engine when driving up a gradient. Is this normal...