misfiring t350

[g.beeton]

As title ive just started to get a mis fire under load,seems ok until car is up to
60-70 c then it starts to miss behave!

Im thinking the coil pack is breaking down when hot is this possible?

Failing that maybe the leads but they look all ok

Wheres the best/cheapest place to buy a coil pack?

I just want my baby to be healthy lol

[Targarama]

My first bet would be the HT leads.

Edited to say a coil pack is £60-£70 - its a Vauxhall item I think. TVR dealers will be able to get the right one from multipart.

Edited by Targarama on Saturday 16th August 21:37

[g.beeton]

Thanks ive orded a coil from clever trevor....will keep you posted once the part arrives

[g.beeton]

Well ive changed my coil and its no better so going to order leads and maybe plugs.....this is getting expensive lol

Was only serviced 200 miles ago so it should of had new plugs?

Any one got any ideas

[tonto2]

Same problem with my Tamora turned out to be HT leads
HTH

[greenback]

hi please sit down 1st.my sag has had the same problem misfire under load once warm.changed leads ,plugs ,coil, injectors, battery, ecu, but misfire still there.replaced wiring loom and solved it.go and have a lay down for a bit took 8 weeks.

[g.beeton]

jeez i hope its the ht leads!! Will keep u updated

[Targarama]

g.beeton said:

Well ive changed my coil and its no better so going to order leads and maybe plugs.....this is getting expensive lol

Was only serviced 200 miles ago so it should of had new plugs?

Any one got any ideas

Have you taken the plugs out to have a look at them - maybe even after 200 miles one looks worse? remember that during service the leads will have been tugged around etc.

[g.beeton]

Not taken plugs out yet, going to do it when i replace the leads this weekend, so will give them a inspection

The misfire /hesitation is worse now anything other than gentle acceleration

Cant wait to crack this problem, anyone have any more ideas?

If its not the leads plugs its looking like a trip to fernhurst

[Basil Brush]

When were your valve clearances last done? Mine was doing this and it turned out to be due to an exhaust valve clearance closing up so as the engine warmed up the valve wasn´t closing.

Hope yours is more simple.

[Targarama]

What did the dealer who just serviced it say?

[braders]

Targarama said:

What did the dealer who just serviced it say?

Yes if serviced 200 miles ago i would be talking with them

[g.beeton]

My leads never arrived but i removed the spark plug cover

plug no1 was very wet so i think i ve found the problem

Havnt started it yet as ive been busy cleaning the engine bay up

Will rebuild it tomorrow using the old leads but feel pretty confident
ive found the problem,seems the garage who serviced it didnt seal it to well

Will keep you all posted.......

[g.beeton]

Cars fine and its great to have it firing on all six!!!

Water Ingress was the problem!!!!