2011TXDenali
Member
- Joined
- Jan 8, 2018
- Posts
- 35
- Reaction score
- 41
I was getting P0300 and P0304 codes along with a couple others I can't remember. Finally swapped out the spark plugs, wires, and an ignition coil. We got the Yukon with 120K miles, so I am guessing the plugs and wires were probably original. Codes are gone, everything is back to normal. Amazing what you can learn on YouTube.
Next up is replacing the transmission cooler lines. They are starting to leak a little more now. Anyone know what parts I would need for an 2011 Denali 2WD?
Next up is replacing the transmission cooler lines. They are starting to leak a little more now. Anyone know what parts I would need for an 2011 Denali 2WD?