misfire
 

Gooday all finally getting around to address the disco problem getting misfire 1 and 3 cylanders and a 1300 code has new coils and 8mm wires and plugs pulled the plug getting good spark and it was wet with gas i have new upstream o2 sensors however prior to this happpening i had a rattling cat going to get a compression tester and do a test any use in doing a cooling system pressure check?thanks

oops truck has 156,00 fault free so far

If you have access to them, they are both good test to be done at that milage anyway

Hi everyone well after chasing round all afternoon i was unable to rent or purchase a coolant pressure tester with an adapter that fit i `will do a compression test tomorrow,,,,,just to see where things are,,,,,,thing is with this millage should i maybe just go ahead and tear it down?the truck is off the road and garaged,,,been a good truck this far quick question should i still go ahead and warm it up with the obvious misfiring or do cold thanks:)

hi all got a compression tester is pulling the 30 amp fuse for the fuel pump enough or do i need to locate and pull the relay as well thanks

did the test cold as i had the plugs out for inspection will do again after warm up very consistent just under 150 passenger side bank all the same and 130-135 drivers side

I think I read that the pressure test that advanced uses fit LR, not sure I have one from HF.
but it would be interesting to see what your final numbers, are already you have 10% difference from right to left.

Thank you for your reply i am going to redo the test warm and will post after should i get the necessary fittings to do a coolant system check?want to rule out slipped liner as much as possible before teardown no smoke in exhaust...... or will the condition of the head gasket show a slipped liner?

I would also pressure test the cooling system so you don't have any surprises.


on you compression test if you put a table spoon on oil in the cylinder and the pressure goes up substancally then you most likely need rings

Thank you will proceed with that and let you know have a good day