2012 gas smell and drop in economy.

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GDIMammothTank

GDIMammothTank

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Getting a yummy, not good though, fuel smell when I start the 2012 5.4l Triton up. Going to replace spark plugs as a precaution and hope that does it. Also dropped in mpg from around 14 in the city to barely 11. Just hit 203,940 and didn’t see the last time plugs were changed on the carfax so guessing it’s time. Will update when I’m done with plugs. I keep seeing that spark plugs don’t do the triton thing anymore since they were updated so hopefully it goes smooth. *knocks on fake wood*
 
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GDIMammothTank

GDIMammothTank

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Images 1 and 2 are one spark plug, 3 and 4 another.
 

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ahof85

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How did the plug removal process go? Any issues? I have to replace mine on my 2011 (plug age unknown) and I have some nerves about it after reading up on it.
 
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GDIMammothTank

GDIMammothTank

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ahof85 said:
How did the plug removal process go? Any issues? I have to replace mine on my 2011 (plug age unknown) and I have some nerves about it after reading up on it.
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What I kept reading online is if you can do the first 6 you can do the last 2. Let me warn you, you will want a swivel, and a place you can curse. The fuel smell came back so… oof. No CEL and I didn’t use a torque wrench to put them in but it was smooth otherwise. I’m dreading doing the driver side VCT solenoid since the passenger side was soooooo fun.
 
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ahof85

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lol. A place to curse. Noted.

good news on no broken plugs, though.

You may have inspired me. Thanks for the tip on a swivel.

For your gas smell, nothing to do with the headers (slight warp)? That’s my next fun thing.
 
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GDIMammothTank

GDIMammothTank

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It’s possible, I hear a tiny tick when it starts. Could be an exhaust leak and it stops from it expanding and closing gap. Thank you for the idea!
 
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Logan97

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ahof85 said:
lol. A place to curse. Noted.

good news on no broken plugs, though.

You may have inspired me. Thanks for the tip on a swivel.

For your gas smell, nothing to do with the headers (slight warp)? That’s my next fun
Click to expand...
Go on a short drive to warm up your engine, spray some pb blaster in the holes and let sit for 15 to 20 minutes before attempting removal, helps a lot. And have a good breaker bar too, I know that sounds excessive but I had to use one.
 
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