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[deejaywardy]

ok so ive just done the rocker cover gaskets and everything is fine ,, but when the car is cold it seems to run fine when it get a bit warmer it starts to missfire and gets worse the more you drive ... ive had it on a code reader and its cylinders 1 , 3 & 5 that are missing ,,, im off to get some new plugs soon but is there any other reason it could be doing this

just baffles me that it runs ok cold but not warm

any help would be great

thanks 

[tunnie]

for all 3 on a single side to miss-fire would suggest coil pack problem, i would suggest swapping the coil packs over to see if the fault transfers, BUT not sure you can do that...... need someone else to confirm 

[deejaywardy]

for all 3 on a single side to miss-fire would suggest coil pack problem, i would suggest swapping the coil packs over to see if the fault transfers, BUT not sure you can do that...... need someone else to confirm 

thnaks for the reply m8 

if it was the coil pack wouldnt it do it all the time not just when its up to temp

[RobG]

for all 3 on a single side to miss-fire would suggest coil pack problem, i would suggest swapping the coil packs over to see if the fault transfers, BUT not sure you can do that...... need someone else to confirm 

Not interchangeable

[tunnie]

for all 3 on a single side to miss-fire would suggest coil pack problem, i would suggest swapping the coil packs over to see if the fault transfers, BUT not sure you can do that...... need someone else to confirm 

Not interchangeable

D'oh, cheers for clearing that one up. 

Instead i'd take the coil pack out, inspect it. Mind had some burn marks on it 

If its just the one side, and the plugs are new / clear of oil, would suggest coil pack failure 

[deejaywardy]

for all 3 on a single side to miss-fire would suggest coil pack problem, i would suggest swapping the coil packs over to see if the fault transfers, BUT not sure you can do that...... need someone else to confirm 

Not interchangeable

might just have to buy one then and see how it goes 

[deejaywardy]

well i did my cam gaskets ,, then went for a drive ,, started to missfire when got warm ,,, so went back home and had another look no oil or water or anything ,, plugs need changing anyway cuz bit old now prob 30000 miles on them so ive been told by previous ,, but if its coil pack anyone got a good price from anywhere ??

 

[tunnie]

30k old plugs? I'd be changing those soon as possible. GM Twin Electrodes work well 

[deejaywardy]

30k old plugs? I'd be changing those soon as possible. GM Twin Electrodes work well 

where can i get some GM Twin Electrodes plugs at good price lol???

[dbug]

Vx on TC or try ebay mate

[deejaywardy]

Vx on TC or try ebay mate

thanks    not TC holder but shall look see whats about

[tunnie]

Vx Trade, might be worth a PM to MarkDTM Calib, he is in Nottingham and has access to TC.

They are about £2.something each

[dbug]

Any use - http://cgi.ebay.co.uk/VAUXHALL-SPARK-PLUGS-9195109-GM09-TWIN-ELECTRODE_W0QQitemZ250579949521QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item3a57ba97d1

4/6 will get you started!

[edit]If you want 6/6 another link - http://cgi.ebay.co.uk/VAUXHALL-SPARK-PLUGS-V6-OMEGA-VECTRA-SINTRA-CAVALIER_W0QQitemZ250579951315QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item3a57ba9ed3[/edit]

[Rockhampton]

for all 3 on a single side to miss-fire would suggest coil pack problem, i would suggest swapping the coil packs over to see if the fault transfers, BUT not sure you can do that...... need someone else to confirm 

thnaks for the reply m8 

if it was the coil pack wouldnt it do it all the time not just when its up to temp

When my coil pack was giving up, it could be very temperamental - it would go a couple of days, no problems, then it would start missing all over the place. Not had any bother since changing it, and the fault codes have vanished. My problems were caused by water from the scuttle drain filling up the plug wells and eventually destroying the pack. Managed to get a new boxed genuine GM one from eBay for £35 from a guy clearing out old stock - Autovaux knocking them out for £70 ish. Good luck! 

[deejaywardy]

thanks for all your help everyone ,, i shall get some new plugs soon as money is low at the moment lol ,, and if that dont cure it i guess a coil pack is in order 

just incase those 2 dont cure it is there anyother things it could be ??