Spark plug change - 2019 Ram 1500 w/ 5.7

[Mr.Grid]

Finally got around to changing them this week at 103K miles. The spark plug tool mentioned worked great for all but two plugs. No way to get it to fit the two right near the brake booster. I had to put a spark plug socket in the hole, then attach a short extension, then a swivel adapter, and then the ratchet. I did those two and the back two on the drivers side first, and those 4 took about 2 hours and lots of cuts and scrapes. Called it a day after those 4. Did the other 12 today in about 2 hours. The other 4 on the drivers side were still a pain due to hoses, lines, and close wrapped wire bundles. All 8 on the passenger side were super easy in comparison.

Changed the PCV valve and cabin air filter today too. Glad this is finally done.

If you still have those spark plugs you replaced, can you put a feeler gauge to them and report the gap now that they have 103K miles of use on them? TIA

 

[Tattoofever6971]

Havnt done mine yet but snap on sells a double swivel spark
Plug socket wonder if that whould help in the tight area
It’s worked well for me over the yrs

 

[Custompainter99]

Going to be doing my spark plugs .. I'm going to be ordering them from Rock auto.. when i go to check out there is a disclaimer that says : "Manufacturers recommend replacing spark plug/coil on plug boots when replacing spark plugs" ... Is this true? or can i just re-use what I'm currently running. has anyone replaced them?

 

[CHeYeNNe71]

I've never replaced them or the coils unless there was an issue. Just take your time pulling the coil off, so you don't mess a boot up.

 

[Cbty2050]

"Manufacturers recommend replacing spark plug/coil on plug boots when replacing spark plugs"

Rarely is there an issue with the boots. Replaced many spark plugs on the 5.7/6.4 hemi-I never recommend them unless there is an issue.

 

[Tattoofever6971]

Ya just give em a twist as your pulling I don’t change em unless I have to then you can always shoot to the parts store

 

[Custompainter99]

I just replaced my spark plugs. It wasn't really horribly bad on the drivers side. I think the worse part was getting the wiring harness out of the way so i could unplug the 1st connector from the coil pack on the #1 cylinder. passenger side was a breeze

 

[RLee276]

I did a search, hoping I’d come across something, but nothing really answered my questions.

Saw a couple of “PITA” references to changing the back 4 on the drivers side by the brake booster, and that’s my main concern. So hoping someone has experience with doing this.

Mine is not the hybrid engine. Just a normal 5.7 in a 2019 5th Gen NBS.

I’m looking for tips / tricks on how to get those 4 out and in, as well as which plugs are recommended.

Dealer and mechanics shop down the road costs were both insane - $1130 was average. Using factory plugs which I’m seeing in the Mopar parts site at about $23.10 each x 16 = 369.60. So they are charging me $760.40 for labor / shop items.

The most expensive plug listed for my truck at Autozone is an NGK for $14. So $14 x 16 = $224. Do it myself, I save over $900, but may lose my sanity with those 4 plugs on the drivers side.

Thoughts, suggestions, plug recommendations (anyone know the make / model of the stock plugs?), etc… are all welcome.

Oh… and YouTube, which is my go-to for this stuff, isn’t being good to me today. No good vids so far of my make / model / engine combo. Close, but some differences in access. Plus, no really good tips found so far.

All the best,
Glenn

I was worried when I changed mine but it’s not a big deal at all. Remove wheel and liner. Get a socket made into a swivel (1/4 inch ) The plugs under the brake fluid will require you to drop the socket in to the hole, then attach a 1 inch extension then you can attach it to the ratchet.
Its not as difficult as some would lead you to believe.

 

[RKLubbock]

Rock Auto is good to buy from. That's why I linked them.

I ordered plugs specifically for my 2019 Ram 1500 5.7 from NGK.com. They came gapped at about .040-0.0.41. I plan to re-gap them at spec of .044. Why would I not?

 

[23RAM]

I ordered plugs specifically for my 2019 Ram 1500 5.7 from NGK.com. They came gapped at about .040-0.0.41. I plan to re-gap them at spec of .044. Why would I not?

Never regap plugs that are pre-gapped - it can damage the weld for the electrode and possibly have the plug fail in the cylinder causing damage. If you're sure you bought the right plugs, exchange them for a set that are properly gapped. NGK pre-gapped plugs come with clear tubes over the end to protect and maintain proper gap during transport and handling.