Just joined after a long couple of weeks of dealing with these issues. Is this a Honda defect for the fits or did I get a bad car? Car is just over a year old and 38,000 miles on it. First time the car starts and all the warning lights go off one after another. You can only drive it 10-15 miles an hour. Honda said it was carbon build up and used a special tool to clean it. We bring it back home and that evening the car does the same thing. Honda now says it's the fuel injectors and fixes that. They've had it a few days since it was Thanksgiving. Then they called today saying the head gasket blew and they will fix it as well. Thankfully I purchased the extended warranty as it's all covered. I'd be screwed if I hadn't bought it. Needless to say I'm not happy as we only have one car and live an hour away from a dealer. I will give the dealer credit for coming down to pick up my car and dropping off a loaner and that they haven't given me the run around. I'm about ready to demand a new car (however; at this point they've pretty much built me a new one) and walk away. If I wasn't making payments I would. Is this a Honda defect or is something else going on? Thanks!

 

They fucked up when cleaning your engine.
There are no systemic problems reported of blown head gaskets on your model, and they recently took off the intake manifold to clean your valves.
They may have let chemicals or particulates inside the cylinder or reassembled components incorrectly.

I suggest you use CRC intake valve cleaner to keep carbon buildup from forming every 10k or so. Made a big difference in my engine.

 

Welcome. See this recent thread, similar experience:

https://www.fitfreak.net/forums/3rd-...-who-else.html

As I state in that thread, I believe this Honda engine is extremely susceptible to carbon buildup, and that Top Tier gas is the only way I know to avoid it. This is purely speculation. I think Honda knows it and is starting to realize it's not going away anytime soon.

 

I have a 2017 LX CVT with 95K miles, bought new. It runs perfect using the cheapest gas possible, using 86 octane when I am in Colorado or Albuquerque. I have been getting over 40+ mpg most of the time. This is not a troll. Go ahead, if it makes you feel better, get the top tier gas.

 

Agree. I have a 2015 with similar miles and pretty much run cheapo gas. If it makes you feel better to use top tier, go for it as it's your cash.

Agree with kittenbutt. I think the initial issue probably was fuel injectors, but then something was done incorrectly to cause it to blow the head gasket. You really don't hear about blown head gaskets on this car/engine.

 

I'm not going to say that this is a common ordeal at all BUT coincidentally, a coworker's 2019 Fit LX also had a blown head gasket. Not sure of the mileage the car was at but the head gasket did fail in a section around cylinder #3 in there case.

Added X factor to that car though... It is salvage titled and did have multiple collisions so no prior knowledge of coolant consumption prior to accidents here.

Edit: Spoke with coworker, car had roughly 26k miles on it. Still no knowledge of it being overheated prior to him buying it.

 

To be honest, its stated as per Honda to use top tier fuels... But hey your car, your choice.

As for the fuel injectors, I'm highly doubting that the repair procedures for injector replacement would have any affect on the head gasket. The cooling system does NOT get opened what so ever and its a somewhat straight shot to install/remove the injectors and fuel rail.

With that said, it still is perplexing to hear about the gasket. Its seldom for manufactures to have bad batches of gaskets (or other parts) be it factory installed or OE replacements but still is possible. Like the R18 blocks from 2006 to 2009/2010, timing belts in 2018 or 2019 V6 Hondas, fuel pumps in 2019s and so on.

 

A bad head gasket is most likely caused by the car overheating at some point. These cars do not have head gasket issues so some driver or mechanic neglect is about the only way that could have happened.

 

@BethanyF, just for future reference, could you tell us what kind of oil (brand, weight) and change interval was used during the 38000 mile journey?