NHTSA complaint #11661717

Owner complaint summary

Head gasket failure. 79,600 miles. Car consumes coolant. Coolant is entering the firing ring when car sits after being driven a distance of 5 miles or more and sits for about 8 hours, vehicle starts with a misfire and makes a small amount of white sweet smoke out of the exhaust pipes even in 85 degree weather. Car smooths itself out after 10-30 seconds. No OBDII or Honda specific codes. Spark plugs, ignition coils, and spark plugs again since 75K. Over $2,000 into this car in repairs. Refilled coolant reservoir 3 times since April 8TH (3 full jugs of Peak Asian blue from Advanced Auto Parts). I want justice for this car and other Honda 1.5T vehicle owners as many of them have this happen at the 80K mark and they’re being quoted $10K for an engine and $5K for a head gasket. There are several people with Accords, Civics, CR-Vs equipped with the 1.5T engine that have coolant leaking into one cylinder. Oil looks fine and not milky. And besides the coolant being low, it looks fine (blue/aqua). Only when the car sits. Car was brought to Rivera Honda in Port Jeff and they couldn’t find any issues. Car is consuming coolant. No leaks. It’s being burned when you start the car after it sits. Gushing liquid noise when car starts or with idle engine stop activated and car restarts.Design flaws on cylinder head has grooves that allow coolant to flow on top of the head to cool it. Failure point according to a Honda mechanic on YouTube. Second flaw is poorly designed head bolts that are too thin and are brittle, not making a good seal as the vehicle ages. Parts are not expensive at all, but the man hours needed to replace this are the killer. 4.5 years old with 80K, it’s Honda. It’s supposed to run forever. Not die under 100K. I would expect this problem after 250K or when the car is over 10 years old. My Godmother had a 1998 Accord that she had for over 20 years and it only needed a fuel pump as a major repair. A testament to Honda’s rock solid reliability. What happened?