2013 F150 EB Plug Change
08-13-2016, 07:59 AM
#1
Member
Thread Starter
2013 F150 EB Plug Change
I've had a few people recommend I swap the plugs on my truck due to common pitting caused by this type of motor. I have about 35,000 on the odo.
Question is - how hard is it to access the plugs on the 3.5 v6 EB and can I trust the pre gap plugs are truly gapped correctly? I've heard the gap of .30 is recommend but the motor is very thought if the gap is even slightly off.
Question is - how hard is it to access the plugs on the 3.5 v6 EB and can I trust the pre gap plugs are truly gapped correctly? I've heard the gap of .30 is recommend but the motor is very thought if the gap is even slightly off.
08-13-2016, 08:18 AM
#2
Senior Member
It's easy...I've done it a few times so I can do it in about a half hour now.
The Motorcraft SP534 should be .030 right out of the box, but I'd check them anyway. They've always been .030 for me but now that I'm running a 93 tune I tighten them down to .028
The Motorcraft SP534 should be .030 right out of the box, but I'd check them anyway. They've always been .030 for me but now that I'm running a 93 tune I tighten them down to .028
The following users liked this post:
willgatlin25 (08-13-2016)
08-13-2016, 12:50 PM
#3
Member
Thread Starter
It's easy...I've done it a few times so I can do it in about a half hour now. The Motorcraft SP534 should be .030 right out of the box, but I'd check them anyway. They've always been .030 for me but now that I'm running a 93 tune I tighten them down to .028 Video Link: https://www.youtube.com/watch?v=tsYqGhY4Q8E
05-30-2018, 04:23 PM
#4
Member
Thread Starter
UPDATE (now about 2 years later)-
I did end up swapping the plugs with just factory motorcraft plugs that were pre-gapped. I noticed an improvement after I swapped the plugs. Better acceleration and smoother idle. I started having issues again after rolling over to 60,000 miles and decided to check them again (now about 30,000 miles later) and they were pretty burned. Decided to replace again with the same motorcraft plugs and once again performance and idle has improved. I guess these engines just eat up plugs fast. I guess I'll swap about every 30k going forward.
I did end up swapping the plugs with just factory motorcraft plugs that were pre-gapped. I noticed an improvement after I swapped the plugs. Better acceleration and smoother idle. I started having issues again after rolling over to 60,000 miles and decided to check them again (now about 30,000 miles later) and they were pretty burned. Decided to replace again with the same motorcraft plugs and once again performance and idle has improved. I guess these engines just eat up plugs fast. I guess I'll swap about every 30k going forward.
05-30-2018, 04:31 PM
#5
Senior Citizen Member
Join Date: Dec 2017
Location: Outside city limits TN
Posts: 4,347
Received 2,707 Likes
on
1,548 Posts
UPDATE (now about 2 years later)-
I did end up swapping the plugs with just factory motorcraft plugs that were pre-gapped. I noticed an improvement after I swapped the plugs. Better acceleration and smoother idle. I started having issues again after rolling over to 60,000 miles and decided to check them again (now about 30,000 miles later) and they were pretty burned. Decided to replace again with the same motorcraft plugs and once again performance and idle has improved. I guess these engines just eat up plugs fast. I guess I'll swap about every 30k going forward.
I did end up swapping the plugs with just factory motorcraft plugs that were pre-gapped. I noticed an improvement after I swapped the plugs. Better acceleration and smoother idle. I started having issues again after rolling over to 60,000 miles and decided to check them again (now about 30,000 miles later) and they were pretty burned. Decided to replace again with the same motorcraft plugs and once again performance and idle has improved. I guess these engines just eat up plugs fast. I guess I'll swap about every 30k going forward.
I bought my 3.5 used with 44k on it. At 70k, I replaced the plugs and boots. My gaps were all over the place. Can't believe Ford recommends 100k!
05-30-2018, 06:36 PM
#6
Member
Thread Starter
when you replaced the plugs, did you also replace the rubber boots between the plug and the coil? IMO, they are cheap enough and should be changed with each plug change.
I bought my 3.5 used with 44k on it. At 70k, I replaced the plugs and boots. My gaps were all over the place. Can't believe Ford recommends 100k!
I bought my 3.5 used with 44k on it. At 70k, I replaced the plugs and boots. My gaps were all over the place. Can't believe Ford recommends 100k!
05-30-2018, 07:04 PM
#7
Senior Citizen Member
Join Date: Dec 2017
Location: Outside city limits TN
Posts: 4,347
Received 2,707 Likes
on
1,548 Posts
Coil packs should be fine. No need to change unles they stop firing. I think I paid like $6 each for the boots.
The following users liked this post:
willgatlin25 (06-04-2018)
Trending Topics
06-04-2018, 01:27 PM
#8
Member
Thread Starter