My vauxhall frontera had the head gasket changed and now the petrol consumption is much worse!?

its had a full service head gasket changed new belt and pulleys. And its struggling to do 12 mpg (driving carefully) used to be 18 mpg. Also when first started in the morning when i push the accelerator it stutters quite badly till it warms up :(|||We used to have one.. These things are nothing but trouble.. as we well found out..





Our next car was a ford galaxy.. Don%26#039;t get one of these either.. no really.. DON%26#039;T!|||perhaps the coolant tempertaure sensor has packed up this can cause the engine to think its cold and puts more petrol in.





or the timing may be a tooth out.|||Take it back. The whole of the fuel and ignition system has to come off to change the head gasket, and everything needs to be retuned. Sounds like they haven%26#039;t bothered.





Your rights under the Supply of Goods and Services Act 1982 entitle you to have your car serviced to a reasonable standard. If they refuse to put it right for free, get another garage to fix it, then issue a County Court summons against the first garage reclaiming the cost.|||I would suggest from my experience as a mechanic , that the garage has got the Engine Timing out on one or more of the 3 Toothed Pulleys when they assembled the belt and pulleys, its down the garage you had the work done at to rectify this problem .... I would Recommend Not even to drive the car in case the belt jumps another tooth and causes a collision between the Valves and Pistons ... Call the garage out asap .. before this problem gets very expensive ..!