HUMMER H2 Misfires
#1
HUMMER H2 Misfires
Hello everyone, my name is Brunner and I drive a Hummer H2 6.0 2004 for some time now I have misfires on several P0300 cylinders.
I renewed, without success: Spark plugs, ignition cables, ignition coils, cable set for ignition coils, right manifold, lambda probes all 4, air sensor, throttle valve, intake manifold with seal and injectors, Kats checked, the error only comes at 2300-2600 rpm on 1, 5,6,8 cylinders. PLEASE does someone have an idea what that can be, thank you.
I renewed, without success: Spark plugs, ignition cables, ignition coils, cable set for ignition coils, right manifold, lambda probes all 4, air sensor, throttle valve, intake manifold with seal and injectors, Kats checked, the error only comes at 2300-2600 rpm on 1, 5,6,8 cylinders. PLEASE does someone have an idea what that can be, thank you.
#3
Hummer H2 Misfires
#4
LOOK Before you POST anything. This is in the WRONG section, it says so at the top "Do NOT post vehicle questions in this section"
All H2 questions go in the H2 section.......................... crazy like that.
Welcome and Good luck.
All H2 questions go in the H2 section.......................... crazy like that.
Welcome and Good luck.
#5
H2 ‘07’ misfire & valve
That’s a lot of things you’ve replaced, not knowing what all that consist of , is that what I will end up doing.?
I went in for transmission was not shifting too high RPM, for 1st then 3rd
Now just informed by my mechanic- same issue ( I had no idea about that misfire- is there a sound that I should have Heard while driving, or? Just over time wouldn’t know? he sd he used a “ reader”
I didn’t quite understand everything he sd , but the transmission lines are rotted also, Apparently there’s 4 lines & somehow the lines eventually has something to do with the radiator the lines are $600. From direct factory … does this sound true.
I went in for transmission was not shifting too high RPM, for 1st then 3rd
Now just informed by my mechanic- same issue ( I had no idea about that misfire- is there a sound that I should have Heard while driving, or? Just over time wouldn’t know? he sd he used a “ reader”
I didn’t quite understand everything he sd , but the transmission lines are rotted also, Apparently there’s 4 lines & somehow the lines eventually has something to do with the radiator the lines are $600. From direct factory … does this sound true.
#7