I have a vauxhall combo 1.4, it revs freally, but has a significant loss of power. ie A hill climb that was taken in 3rd gear now has to be taken in 1st, and struggling to maintain 70 mph on a motorway.
I have been experiencing the same thing, i also owna 1.4 lpg combo and over a period of 10,000 miles have noticed a power loss my van struggles to reach 80mph and hill climbs are becoming a pain! Will try a good service and see if it makes a difference.
