help!!!!

[mike3704]

hi i have a 2002 HD has a misfire in cylinders 3 an 6 i notice it have a little water in those cylinders i change all coil packs an plugs do these truck have intake leaks someone please help!!!

[Sport90]

did you change to an aftermarket COP or stay with the OEM? There's been some discussion about quality of aftermarket. some threads on water intrusion- use search option

[BlairTruck]

Yeah the only coils that are any good are the OEM brand

[mike3704]

no not oem coil packs i bought some new after market packs off ebay

[Blind]

the water gets in the plugs because the coil rubber boots aren't sealing anymore (originals) or they just aren't made to fit right (aftermarket).

The water leaks down on that area when the truck is washed or rained on if the seal on the hood at the firewall isn't sealing anymore.

[Braker85]

the water gets in the plugs because the coil rubber boots aren't sealing anymore (originals) or they just aren't made to fit right (aftermarket).

The water leaks down on that area when the truck is washed or rained on if the seal on the hood at the firewall isn't sealing anymore.

And this is why you always use die electric grease.....

[mike3704]

ok but i change all plugs an packs an it still read the same cylinders but the packs are aftermarket

[Blind]

ok but i change all plugs an packs an it still read the same cylinders but the packs are aftermarket

Move the coil packs to other cylinders and see if the misfire codes follow or stay.

Generally a misfire will be from a vacuum leak, but a bad coil pack can do it too. What kind of plugs did you install and with what gap?

[mike3704]

They are gap at 44 an they are motorcraft plugs

[mike3704]

yes they are

[mike3704]

yes i did that still missing on 3 an 6

[mike3704]

thanks guys of the help i drop it off at ford today an they are replacing the motor cylinders 3 was at 23 an 6 was at 28 [compression check] thank God for the power train warranty

[Braker85]

Have you checked the voltages on those cylinders? Are you getting enough power to them? Possible grounding issue or a short? Could be the cheapo eBay packs. If it ain't a FoMoCo then I wouldn't run it.

[mike3704]

i check injectors packs an plugs still a miss on 3 an 6

Have you checked the voltages on those cylinders? Are you getting enough power to them? Possible grounding issue or a short? Could be the cheapo eBay packs. If it ain't a FoMoCo then I wouldn't run it.

[AjayBrown]

They need to be gapped smaller. And I would recommend a different plug.