Ok hello yall!
im new here.
i have a 98 dodge ram 1500 4x4 5.9L and it has issues.
it started with #8 misfire due to leads. I replaced the wires, cap, router, plugs, coil.
and now i have a #6 misfire???
ive checked all the vac lines, and the injectiors are to par, the sencers are all working good.
i just changed the p[lugs agin today to see if maybe was the plugs not liking the truck. NGK plugs are in, i thought i put them boch platimum, but i was wrong it was just a another NGK liknd wast of time, lol
any help would be grate.
cheers

 

Check out the tech service bulletin in the faq section for plug wire routing.

How many miles on the truck? Have you looked at the plenum thread yet?

 

Do a comp test as well, before spending a boatload of cash on parts.

 

330k and no have not looked an any threads on here. Seen some that comes up on google.
I did the test and said #6 missfire, before that was number #8. Then I changed what I said above. As for the plenum gasket I do think it's shot, oil down the throat. But it's been like that before the issue.
It's my first dodge so new to ram ways.
Cheers.

 

Blown plenum can cause the misfire. As mentioned, do a compression test and if it is good, do the plenum. The TSB on routing plug wires is important as it can cause misfire if not routed correctly to prevent crossfire.