Ask Honest John

Most recently answered technical issues questions
The engine occassionally has what I can only describe as a 'hickup' at about 1500 RPM - feels slightly like a misfire on the injectors, but as it only happens at those revs - could it the fault be with...
How can you tell if the engine is a BMW or a Rover one in a Rover 75?
I have owned a SEAT Altea XL from new. It was serviced and, when necessary, MOT tested by the supplying dealer (Perrys, Aylesbury) each April for four years. In April this year it was serviced and MOT...
My Grand Cherokee suffered major mechanical failure last week while on motorway. oil leak in Diff lead to rear axel damage. It is a dealer bought and serviced car. It has done 30,000 miles and is a Jan...
I have a Kia Carens on an 06 plate, and very good it is. It has an intermittent and very odd starting problem, where it starts fine but will not rev. Once started if I leave it idling at say 1,000RPM...
I bought a 54 plate Fiat Multipla Mk 2 from a dealer in May. It has FSH yet it keeps going wrong. The dealer replaced a front strut then (very reluctantly) replaced the EGR valve after it broke down. Now...
I was driving on the motorway at about 70mph when there was a loud clunk, the car lost power down to below 50mph and revs increased. This has happenened twice but the car is ok at low speed around town....
When driving my 206CC the radio cuts out, everything on board flashes up, it says I have no petrol, revs go down, and can't tell what speed I'm going. Doesn't do it all the time.
On starting ignition there is a whine - started very recently and has just got worse. It dies away very quickly the car drives and steers OK, but the engine is noisier than my previous 1275 Micra which...
I have a Vauxhall Vectra 2.2 petrol 02 plate, I bought the car about two weeks ago and when I bought the car the owner did point out the noise. He said he didnt know what it was. When I start the car...