Hi, can anyone please help or advise me. for a month or so now,when driving my car. my sedona can drive fine,then all of a sudden the car will (jolt) forward,as if u areslamming the brakes on to do a emergency stop,i usually then ease off,downshift, and its ok again.some days it doesnt do it all,but then somedays it can bequite frequent. it had a test on management system not long ago,and showed no faults. i have managed to look down briefly when it jolts forward,on to the dash,and have seen the engine management light pop on briefly when the jolt happens,but then goes off again straight after it stops the jolt. this is really becoming a problem, and do not want garages running me around saying o,well it may be.etc.costing me a fortune. please help. (problem 2) also it has been,since ive had it, made like a grinding noise,not too loud when turning right,any ideas on that too.cheers.