[gerard]

I have an 1999 astra 2.0 sri. Runs great at low speeds, and idle is very smooth. But when i accelerate hard its very rough and jerky. Had it serviced this week but its still the same. Any ideas?
ps. How often should the fuel filter be changed? And could a clogged filter cause these problems?
Thanks
Gerard

 

[yzfr6]

If you read yor service book it tells you in there. I think it could be 20k/2yrs or 40k/4 yrs