2011 spark plug replacement
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2011 spark plug replacement
This is Just an FYI. I replaced the plugs in my 2011 F-150 3.5 Ecoboostwith 50,000 miles. I had a miss under heavy acceleration. Turns out the plugs had a gap over .090" and the side electrode was burned. Replaced them and all is well. Hope this might help someone .
Thanks!
Thanks!
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Yes ,they are the The Motorcraft SP 534. I purchsed them from Stage 3 Motorsports. They came gapped at .030", I checked each one to make sure. The drivers side was a bit tricky, but nothing to bad. I have a Hypertech tuner and a 3" Flowmaster cat-back. I know others make more power.but I am counting on reliability. I am impressed with the performance and towing. I tow a heavy boat (7000 lbs.) and have no problems. I have been getting 18-19 mpg in mixed driving. I will see if the plugs helped that any.
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Are they as a big of a pain to change as the used to be. My 98 was like a 4 hour job i HATED it lol
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Actually it was pretty easy. It took about an hour or so. I needed a step stool to reach them. The drivers side it a little tougher, but not bad I thought. The wire to the fuel regulator has the be pulled to remove the back plug and the pcv is in the way for the front plug. Other than those two issues, a straight forward job. I did apply anti-seize on the threads for insurance.
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