I have a 2004 Dodge Ram 1500 hemi and need to know witch plug (because there is 2 per cylinder) is the one that fires on the power stroke. Just bought e3 plugs & don't want to replace them all. Than

10

Asked by May 24, 2015 at 01:20 PM about the 2004 Dodge Ram 1500 SLT Quad Cab SB 4WD

Question type: Maintenance & Repair

9 Answers

10

One fires on power stroke One fires on exhaust For a cleaner burn. Just trying to find out witch one is witch

1 of 1 people found this helpful.

Ok, I was guessing. I really should not have attempted an answer, knowing very little about this engine and deferred to somebody that does. But I did find this: This engine uses TWO DIFFERENT types of spark plugs. A total of 16 plugs are used. The plugs are mounted in two rows (banks). The upper row is used on the intake valve side of the cylinder head. The lower row is used on the exhaust valve side of the cylinder head. The upper row uses Bosch Nickel Yttrium plugs. The lower row uses Bosch Iridium plugs. DO NOT INTERCHANGE THESE PLUGS.

I am NOT arguing with you. On the contrary-- I am looking for an education. Been reading up for a few, and how can they fire at different times? there is one coil on the upper row, on-plug, with a wire going to other plug. I don't get it

1 of 1 people found this helpful.

Oohhh....I found it. My lesson today. Spark plug/coil wire harness assembly. When the plugs fire after compression for the cylinder on the power stroke, the companion cylinder on the opposite bank fires during the exhaust stroke, requiring only eight ignition coils to fire all 16 spark plugs.

1 of 1 people found this helpful.
30

I have a 98 dodge 318 auto and whant to put a standard in it from a nuther truck can it be done if same mortar but trans is different 

10

But is the one with the coil on it the "power stroke" plug??

Yes. The wire goes to the 'companion' plug on the other bank for the extra exhaust spark see this page: ...................................... http://www.wiringdiagrams21.com/2012/08/01/2005-dodge-charger-lx-5-7l-v-8-engine-firing-order-and-battery-cable-routing/

And this has more: a lot of guys switch them around to get them to BOTH fire on compression/power stroke. Say the run better, but when it comes inspection/emissions test time, better not be that way...... http://www.thehemi.com/forums/viewtopic.php?t=1077

1 of 1 people found this helpful.

I'm still at it, trying to be sure. They call them "shortie wires" to go to other plug in same cylinder and eliminate the 'rat's nest' of 8 wires cris-crossing the engine. Some of them swear by it, say it improves low-end torque, but high rpm HP not so much. ................................ http://dodgeforum.com/forum/3rd-gen-ram-tech/266449-whats-the-purpose-of-the-2nd-plug-in-the-hemi.html

Your Answer

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 11,150 nationwide Ram 1500 listings starting at $1,495.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    6,550
  • #2
    pudgybear
    Reputation
    6,440
  • #3
    dandyoun
    Reputation
    5,830
View All

Related Models For Sale

Used Ford F-150
3,263 Great Deals out of 223,477 listings starting at $1,200
Used Chevrolet Silverado 1500
2,717 Great Deals out of 175,182 listings starting at $955
Used Dodge Ram 2500
156 Great Deals out of 5,493 listings starting at $2,661
Used GMC Sierra 1500
1,181 Great Deals out of 64,912 listings starting at $999
Used Toyota Tundra
699 Great Deals out of 34,411 listings starting at $1,500
Used Toyota Tacoma
713 Great Deals out of 45,875 listings starting at $2,500
Used Ford F-250 Super Duty
427 Great Deals out of 49,460 listings starting at $1,899
Used Dodge Dakota
84 Great Deals out of 3,638 listings starting at $1,499
Used Nissan Titan
291 Great Deals out of 17,675 listings starting at $3,500
Used Chevrolet Colorado
351 Great Deals out of 38,382 listings starting at $1,595
Used Ford Mustang
603 Great Deals out of 39,738 listings starting at $1,988
Used Dodge Ram 3500
87 Great Deals out of 2,306 listings starting at $5,999

Used Cars For Sale

2006 Dodge Ram 1500 SLT Quad Cab SB 4WD For Sale
10 Great Deals out of 317 listings starting at $3,850

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.