Club 80-90 Forums

2.1 engine has had an itermittant rise in revs on tickover since installed new 15 months ago. Originally on petrol but lately on lpg as well. The garage man said it could be one or more of several things when it was in today but I think that now its the same on lpg it seems more likely to be an inlet manifold leak somewhere Its just an annoying little thing on an otherwise well running engine. Any likely causes especially as it didn't do this on the old crap engine from El&^*

air leak.. I would think a small one

brake servo hose in good nick?

Thanks for the reply I am going to check it tomorrow!

either that or one of the small vacuum pipes perished. you can replace em all fer a few quid so i'd start there