Tapping noise on engine and slight lumpy running.
The fault was cured by cleaning the injectors using the Forté Power-Clean Diesel Injection Cleaner.
After cleaning the vehicle running smoother and the mpg increased from 26 mpg up to 31.5 mpg.
Forté's Technical Helpline receives over 300 calls per month. This blog shares solutions for garage workshops on common driveability concerns that can be quickly and effectively treated. The vast majority of those identified are caused by fuel and oil borne contamination formed by natural degradation or via the combustion process. This is a fact of life for internal combustion engines where fossil fuels and oils are used.