Piston Slap: Earth Dreams of Carbon Buildup?
TTAC commentator KCFlyer writes:

Dear Sajeev,

I have a 2015 Honda Fit LX manual, purchased new. From day one I noticed a slight momentary hesitation under moderate acceleration when the engine was cold. I took the car to the dealer after a few weeks but they could not duplicate the problem. I dropped it off again and left it overnight, hoping a cold engine would allow them to experience the issue. No luck.

Fast forward 57,000 miles. Same problem persists and is reported to dealer via phone several times. The check engine light comes on. Dealer says the code means an #3 cylinder misfire. They say the fuel injectors are clogged and charge $1,300 to replace all four injectors. Honda of America throws in $1,000 of goodwill money because fuel injectors are not covered by the 60,000 mile powertrain warranty.

Two weeks later light comes back on. Same code. This time another dealer pulls the head and finds carbon buildup on all four piston heads. They clean up the engine, clean the throttle body and declare the vehicle fixed. Total charges paid for by Honda of America under goodwill claim except $217 for the throttle body cleaning. That was yesterday and I will know within days if the original problem persist.

Tech rep was awesome. He recommends I get the fuel injectors and throttle body cleaned every 30,000 miles. My question, what caused the carbon buildup? Does the buildup damage the engine even if later cleaned up? Should I dump the Fit? It is an awesome commuter. I average 44 mpg summer and 39 winter.

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Retired Formula 1 cars are often relegated to a sedentary life as displays in museums or as pieces on a collectors wall. But one couple decided to change the fate of a Honda Earth Dreams Formula 1 car and turn it into their track day and hill climb vehicle.

Bjorn Arnils and Nadine Geary purchased the retired Earth Dreams RA107 Formula 1 car at Bonhams auction in 2010 for £37,000 ($53,110 USD at today’s exchange rates) and set off on a quest to turn it back into a running race car.

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While the Earth Dreams gasoline engines will underpin everything in Honda’s lineup going forward, Europe will get at least one diesel version – and we’ll probably miss out.

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Starting with the redesigned 2013 Accord, Honda will introduce its new, ultra-efficient/more powerful Earth Dreams engine lineup. And it’s far from the most silly moniker attached to automotive technology.

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  • Inside Looking Out "And safety was enhanced generally via new reversing lamps and turn signals fitted as standard equipment."Did not get it, turn signals were optional in 1954?
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