Ask Honest John

Most recently answered technical issues questions
Just brought a new air flow meter off ebay, was £32 and works fine, but think my fuel economy has gone down. I am getting at best 300 miles for a tank £40 at £1.24/litre. Does this sound OK to you or...
I had my Audi A6 serviced at a main dealership. At the same time they did a gearbox oil change for me. They returned the car to me and said all the work had been done OK. That evening as I went to drive...
I have gone through a set of front tyres on my Ka in just three months doing just 3k miles. Balance and tracking is OK, but steering doesn't feel great. Any ideas what the problem might be?
Engine has overheated for the first time ever. Genuine 80,000 miles and have been told that the head gasket has gone. Car drives fine, normal oil consumption, but heavy petrol consumption and loses water...
Please could you advise me as to why you think the driver's side front and rear carpets are soaking wet. Do you know if it is a known problem with the Hyundai Getz? I know it is not the heater matrix because...
I have a new Fiesta 1.6 petrol Titanium with the standard 16-inch alloys and 195/45 tyres. Both my wife and I feel that the ride is to firm and hard, unusual for my wife to comment on this, she has never...
The car has just been for its MoT which it passed first time however it got an advisory notice saying 'play nearside & offside steering rack arm' what does this mean? Even though the car is a 2004 its...
I have just ordered a new Honda CR-V 2.2 CDTi ES. It comes as standard with 18-inch wheels and I am aware you have suggested it would ride better on 17-inch wheels. If I went for this option whilst the...
The local mechanic has used Castrol Magnetec 10/40 engine oil instead of 05/30 in my 2008 Ford Focus TDCi. Will this be a problem?
The only way of making electrically powered vehicles practicable is to have their batteries interchangeable (charged for discharged) at drive-through service stations, requiring less time than it takes...