Hesitation mis firing back again

Post by **paul72** » Tue Dec 31, 2013 5:19 pm

I drive it every day to work an home but didnt do it this morning but did it on way back but its not dizzy its totaly dry plus just been out again an its only real bad in 4th gear at low revs like 30 limit an it seems like its missing wen foot is light on pedal u can even hear it chugging but as soon as u put foot down it clears

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Dec 31, 2013 5:25 pm

That sounds vacuum or some mechanical intake/emission valve related, rather than electrical to me?

Bludge · Post by **Bludge** » Tue Dec 31, 2013 5:31 pm

Might it be worth putting the stock vacuum hoses back on just to eliminate the possibility that one of the silicone hoses is contracting/expanding somewhere?

Post by **paul72** » Tue Dec 31, 2013 5:32 pm

Hmmm didnt think of that but why does it not do it all the time

Bludge · Post by **Bludge** » Tue Dec 31, 2013 5:42 pm

good point, but got to be worth a try seeing as its not gonna cost anything! have you changed the dizzy? cant rremember.

Post by **paul72** » Tue Dec 31, 2013 5:54 pm

Yeah i replaced all ignition parts everything but cant remember when this started but think i agree if i can find all old stuff ill change it all back then see if it still does it

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Dec 31, 2013 5:55 pm

paul72 wrote:Hmmm didnt think of that but why does it not do it all the time

Because the mixture changes as the engine warms up, so something might be more noticeable at certain levels of mixture than others.

Post by **paul72** » Tue Dec 31, 2013 6:36 pm

So if i change back as many parts as i can find then see if it stops otherwise its something new i aint done

CrunchyAdams82 · Post by **CrunchyAdams82** » Tue Dec 31, 2013 6:50 pm

When you replaced the coil pack, did you replace it with a brand new OEM one?

Post by **paul72** » Tue Dec 31, 2013 6:53 pm

No i didnt but i know i replaced that after the problem an it made no difference . Also i googled this problem and theres alot of people that have had it but no answer to it even wen they have replaced everything