04/07/2026
Replaced an EGR valve on a 2008 Honda 3.5l! (My favorite engines btw)
Customer said his car had a hard start and it was running rough when it finally did start. Came out and verified, hes not a liar 😂
Put my cheap code scanner on it and it literally had 16 codes for cylinder 1 to cylinder 6 misfires and an egr solenoid malfunction code. I told the customer that it MAY be stuck open and is allowing burnt exhaust air back into the engine which may be causing the hard starting and misfire due to exhaust air recycling back into the intake(low oxygen at that point) and at the same time, causing the engine to run super lien. Didn't promise that it was the causing all of the issue since I didnt take anything off but regardless, the computer was throwing the egr code so it needed replacing.
Long story short, I pulled the part off and saw that it was stuck open as I predicted and threw a new part on it with a new gasket and that fu**er started up super fast and on a cold start too! It coughed and struggled for a couple of seconds but after that, it ran like a top. Reved it up a bit and shut it off and started it back up 3 times and it acted like nothing was ever wrong!