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14CUX lurching


dave88sw

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Hi, i'm looking for suggestions as to why my 3.9 hotwire (late serp) is "lurching" on medium acceleration. Basically, if i tickle the throttle and let the revs increase, it's fairly smooth, equally if i give it a boot full it pulls hard, but normal driving with about half throttle, particularly hills, it lurches and isn't smooth (no misfires, just doesn't accelerate smoothly). I haven't tried much so far, but it's very recently had (all genuine) leads, plugs, dizzy cap, rotor arm. One thought was that maybe the vacuum advance is sticking? So i was thinking of dribbling some oil down into the dizzy but is there anything else i can look for?

Thanks

Dave

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It's possible although it looks like a fairly recent replacement (i've not long bought the car), i was also told when i bought it that it had just had the AFM replaced (which i do believe because it's spotlessly clean). I suppose the best start would be to get it plugged in but if it is something like a sticky advance it wouldn't show a fault would it?

Cheers

Dave

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