Fiat palio s10

[Santosh s10]

Hi people, im Santosh from chennai... i am a new member to this forum and also new to a fiat car. I just got a used 2002 palio s10 and im really satisfied with the car's performance. I also own a maruti baleno but i need a hot hatch for driving pleasure... I mainly chose palio 1.6 s10 is for its performance, the car easily reaches 140kmph, and i could manage to do a top wack of 170kmph in a short straight and the fuel efficiency is 8 in city and 13 in highways... The handling of the car is just awesome and the ride... But i have an issue with the car, the car's engine is always shaking when it idels but when reved, the jerking stops... After getting the car from a used car dealer, i took it to chennai Concord motors and they checked the car for 3 weeks and finally the said that there is no hardware issues and even there is no error codes when connected to the examiner... but they cannot fix the engine jerks... They checked the ECU, ignition coils, spark plugs, spark plug cables, O2 or Lamda sensors, fuel injectors and the rail, fuel pump and the timing but the jerk is not controlled... they even changed all the above components including the ECU from another 1.6 s10 but the engine jerk still not stopped. Finally the chief mechanic said that there may be some problem in the cylinder head or the valve allignment or valve clearance... there is no warning lights flashing or glowing in the car and there is no power lag. So im confused whether its a major issue with the car or its the car's behaviour, even when the car is idling, if i keep my hands near the exhaust, i can feel the exhaust beats are not constant or steady, it sounds like the car is misfiring... I really need experts advice or sudjestions regarding the issue... Please help me...

Regards,
Santosh

 

[PuntoSS]

Hi there, welcome along. Might I give you a handy link to the Palio section, the folk there will no doubt be able to be of more help than I am on a Palio!