Hi Everybody.
New member looking for a little help please. My grand old girl (04 reg,147,000 miles) has developed a misfire(?) between 3,500 and 4000rpm.
Now the puzzling thing is this only occurs in 3rd and 4th gears or it did. Driving home this evening she started to cough in 2nd gear too. I've had her on the diagnostic computer twice now and everything reads ok. I also had the ECU reset but to no avail. I would be grateful if anyone could suggest a fix as the mechanics out here don't seem to have the foggiest. Thanks in advance.