Losing power
Just got a call from the shop. Seems like the car was mis firing. So I'm going to change the spark plug and he said one of the coils was bad so im going to change that also. I got more codes but ill do these for now.
What about the coolant leak?
https://www.hummerforums.com/forum/h...ry-tank-43314/
https://www.hummerforums.com/forum/h...ry-tank-43314/
Since the shop told me the car was misfiring and he told me my spark plug needed change and one of the coil was bad so im getting that done. Im picking it up tomorrow morning. I have a few more codes to work on but one thing at a time. Im going to list the codes that I need.so u guys can help me pick which ones to fix first so the car runs good. I recently purchased the car so I have no history on the maintenance of it from the last owner.
What do you think happens when you drive for 40 minutes in that ambient temp? Your H3 reacts to that temp to keep from overheating, one of the things it does is retard timing...... so yeah, its gonna feel sluggish compared to when you started out with no heat in the system.
What do you think happens when you drive for 40 minutes in that ambient temp? Your H3 reacts to that temp to keep from overheating, one of the things it does is retard timing...... so yeah, its gonna feel sluggish compared to when you started out with no heat in the system.

Take a pill dude, I was helping and made no effort to insult anyone. If I was trying to insult you, it would be very clear.


