Spark Plug Blown on Low Mileage Fit (HONDA DENIES WARRANTY)
New Member
Joined: Mar 2017
Posts: 5
From: SF, CA
+4 year +40k update
So hitting 100k now and 4 years since last incident I started noticing the all-too-familiar gas smell while driving. I went ahead and checked all the spark plugs (which is actually quite easy now with a skinny left arm). 4 years ago I tapped/rethreaded the #2 spark plug but this time it checked out okay. It was the #4 (USA Driver's side) that was loose about 1.5 turns. Kind of bummed a plug loosened but happy it only loosened a bit. Since the car isn't worth too much I may try to put some high temp permanent threadlocker to the spark plugs and I should be good till 200k.
New Member
Joined: Jan 2025
Posts: 11
From: Manitoba, Canada
its not an official fix...but my recommendation has been to treat the plugs like they are one time use. i believe once u crush the washer even at 14 lbs, and or back the plugs out, its done and will never hold again even at higher torques. id say have a set of plugs on standby, and next time you check them and if they are loose just replace all of them and take them to 20 ft lbs. and after that if you "check" them, only turn in the tighten direction with the torque wrench.
i had a couple of loose plugs on my car a year and a half ago. the loosest one was tighter than hand tight, but definitely not at the recommended torque. replaced all of them and have done what i described above and they have been fine.
anyways, keep an eye on em and i hope u get em sorted
i had a couple of loose plugs on my car a year and a half ago. the loosest one was tighter than hand tight, but definitely not at the recommended torque. replaced all of them and have done what i described above and they have been fine.
anyways, keep an eye on em and i hope u get em sorted
New Member
Joined: Jan 2025
Posts: 11
From: Manitoba, Canada
At 26,000 miles (2011 Sport), my #2 & #3 came loose (#2 first and dealer fix and 2 days later #2 & #3 were bad). Dealer's solution was to charge for a diagnostic, charge for a coil pack (#2 only), charge for labor, and never addressing the loose spark plugs that were again creating misfires within 2 days.
I used the blue Permatex directly on the spark plug threads and I now have 63,000 miles and have had any issues nearly 40,000 miles.
I used the blue Permatex directly on the spark plug threads and I now have 63,000 miles and have had any issues nearly 40,000 miles.
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Kevin Evans
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Jun 7, 2017 08:43 PM
