missfire possible head gasket.

[cooltom31]

my cars been missfiring for a while and i cant get to the bottom of it. its a c25xe v6 engine and its missfiring on the two middle cylinders, sometimes it kicks in and runs fine for short periods then goes back to missfiring again, also i have noticed the coolant is going down slowly so im thinking head gasket? allthough there are no other symtoms like gunge etc and the oil seems cleanish, becoming a real headache now so any help appreciated.

:thumb:

[burgo]

there is only gunge present if oil and water mixes. does the water system pressure up alot?

[cooltom31]

yeah seems to and it doesnt overheat or anything the heaters in the car dont work though. ive allready changed coilpack and leads and checked all the plugs aswell. the rocker gaskets leak quite bad but dont think that would have anything to do with it?

[Stuart]

leaky seals wont help.

[cooltom31]

gonna have a go at the head gasket my self never done one before though so will se how it goes.

[Damo]

gonna have a go at the head gasket my self never done one before though so will se how it goes.

What car is it in nova? if so good luck with space issues mate especailly on the rear head unles your taking the engine out.

[cooltom31]

its in a mk3 astra gsi mate.

[Damo]

its in a mk3 astra gsi mate.

Thats not to bad then but still a tight squeeze though.