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fuel problem?

Posted: Sat Aug 03, 2019 8:17 pm
by ribbleman
Hi All. possible fuel problem? engine surging up and down slightly across rev range more so between 20/40 mph.
Have changed fuel filter/cleaned banjo filter fuel lines/ cleaned crank sensor but have leak from the seal on engine
side of pump have done outer one.would this draw air into fuel? 2.5 diesel TIA.