SOLVED: What is the spark plug gap setting for a Ford F150 (2024)

• Contributor1 Answer
• Posted on Oct 18, 2012

The correct gap range, according to the sticker under the hood of the truck, for a 1990 Ford F-150 5.0 is .042-.046.

• 2 more comments

• AnonymousOct 19, 2012

  Right you are. Joel Mitchell was going by AutoZone's database or by the data found in parts look-up books such as the one found in Walmart's Automotive section, which list the gap as .054. I tried setting the gap on my 1990 F-150's 5.0 liter engine, and all but two of the plugs fouled within two weeks. I changed plugs and set them at .044, and they ran fine, and there was no fouling. On my vehicle the sticker under the hood is missing. I did find a photo of the sticker online, though; and you're correct.

• AnonymousOct 19, 2012

  Thanks, middleagedro, for your post.

• middleagedroOct 18, 2014

  My experience is that the truck runs best at .044. These rigs tend to spark hot anyway.

• middleagedroOct 18, 2014

  And, incidentally, I own a 1991 F-150 302 EFI, but the 1990 should be the same.

• Expert46 Answers
• Posted on Jun 14, 2009

It should be .054 however You should always use the sticker under the hoodof your vehicle. If for some reason your says .052-.056, then that iswhat you use. The stickers on the truck will have the most specificinfo for that truck of anything. I need the year to be more sure, also when you buy the plugs, the parts store can tell you the exact gap.

• biga17133Jan 26, 2019

  this is wrong .044 to ,047 is correct being a ford man for 35 years if you set it at your setting it will foul plugs and mess up the engine servilely knock and bang spit and sputter,with in a week if not right off the bat..

• Contributor1 Answer
• Posted on Feb 21, 2012

I realize that this reply comes almost three years after the fact, but for future reference, the spark plug gap for the 302 (5.0 liter) V8 engine in Ford F150 pickups, according to Haynes Repair Manual for 1980-1994 Ford Pick-ups and Bronco, is .044. Gapping the plugs to .054, as Joshua stated, could result in unstable behavior and premature fouling.

• 1 more comment

• AnonymousOct 19, 2012

  You're correct, but AutoZone's data base and the look-up book at DIY places like Walmart list the correct gap as being .054. I tried the .054 setting, and after a week or so, all but two of the plugs fouled. I changed plugs and gapped them at .044 (midway between .042 and .046), and they ran great, with no fouling. The data that AutoZone is wrong. If the sticker is missing from the truck, then the owner is given wrong info at AutoZone and the part look-up book at DIY outlets. Haynes Ford Pick-ups & Bronco 1980-1996 repair manual lists the gap for all engines as .044.

• biga17133Jan 26, 2019

  yes they will not change it

• biga17133Jan 26, 2019

  hopefully you have the owner book that comes with your truck as I do for my 1984 ford f150 4x4 302 v8 it clearly states .044 and I also only use Fordmotorcraft plugs ASF42 either the c for copper of p for platinum I prefer ASF42C.

• Master321 Answers
• Posted on Jun 14, 2009

SPARK PLUG GAP1990 Ford Truck F150 1/2 ton P/U 2WD 5.0L FI 8cylThe Spark Plug Gap.054 (In thousandths of an inch)

Caution! Gap is not adjustable on certain plug brands

Question edited for clarity.

Depends on the spark plugs

Video
https://www.google.com/search?q=2005+Nissan+Armada.+spark+plug+setting

https://www.rockauto.com > catalog > nissan,2005,armada...
Do Not Gap, Gap is Preset; For Sustained High Speed Driving; Original Equipment Is Platinum. OE Fine Wire Platinum; Pre-Set Gap: 0.044".

https://www.partsgeek.com > ... > Armada Parts
We offer high quality new, OEM, aftermarket nissan armada spark plugs parts. Buy online or call toll free.

2005-2015 Nissan Armada 5.6L V8 8 pc NGK G-Power Spark ...

https://www.sixityauto.com > 8-pcs-ngk-g-power-spark...
8 pc NGK G-Power Spark Plugs for 2005-2015 Nissan Armada 5.6L V8 ; 2009, Nissan, Armada, 5.6L V8;FLEX;Gap 0.044" ; 2009, Nissan, Armada, 5.6L V8;Gap 0.044".

..

Dec 04, 2022 •

Really need a Model as well are year and make, but this should help. You can also Google

make model manual
most are online, some Service manuals as well.

http://greenhulk.net > ... > Polaris PWC Performance

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Aug 28, 2021 •

Dec 18, 2015 •

May 21, 2011 •2002 Ford Explorer

did you properly "gap" the spark plugs? many spark plugs have to have the ends properly "gapped" before installation, by using a "gapping" tool/wheel to properly space the arc gap to the correct distance.

if the plugs were properly gapped, or already came pre-gapped out of the box for your specific vehicle, then you may have air getting into the cylinders around the spark plugs. were you careful to properly tighten the spark plugs straightly into place, or is there a chance that you left one loose, or, even worse, cross-threaded one of the spark plugs?

Mar 26, 2011 •1991 Ford F150

Make: FORD
Model: LTD CROWN VICTORIA
Year: 1991
Engine: V8 - 5.0L - FI - - GAS

part Number: RS14LC
GAP: .050" (Original Equipment Manufacturer and/or Original Equipment Equivalent)

Hope this helps (remember to rate this answer).

Jan 30, 2011 •1990 Ford LTD Crown Victoria

.035" for the old big block Fords with breaker point ignition.

lp

Jan 26, 2011 •

Aug 08, 2010 •

Aug 01, 2010 •

Make: FORD
Model:F-250
Year: 1989
Engine: V8 - 5.8L - FI - - GAS

Needed GAP 0.44" Champion Catalog

More details for other engines sizes in Champion Spark Plug

Hope helped (remember rated this help) Good luck.

Oct 16, 2009 •1989 Ford F 250