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-   -   Cyl 4 Misfire, Cyl 6 Misfire, Random Cyl Missfire. (http://www.ramforumz.com/showthread.php?t=156191)

97ramsport1500 10-19-2013 10:21 PM

Cyl 4 Misfire, Cyl 6 Misfire, Random Cyl Missfire.
 
CEL indicates these codes, replaced all plugs and wires and distrubutor but to no avail, could the ignition coil be causing this? The CEL goes away if you drive it hard or drive it for more then 2 hours under load.

hydrex 10-22-2013 07:11 PM

Carbon build up on the valves? Might try Seafoam. I would think running hard would only make an electrical problem worse, but might clean out some carbon, temporarily, at least.

97ramsport1500 10-23-2013 01:21 AM

Last time I used seafoam it went away for about a week then came back, I replaced the coil with an Accel Super Coil today since I was told it may be the problem, didn't help the problem just made the truck a bit faster, and more responsive, that being said it also made my stereo responsive I could hear my engine loud and clear through it lol..

Razorblade 10-23-2013 12:26 PM

What is the truck acting like before the lights and after the lights come on? I know when mine had a misfire on 7 the truck would shake like it was falling apart and even after I fixed it a code still came up but the truck is running like new.

97ramsport1500 10-24-2013 03:07 AM

Quote:

Originally Posted by Razorblade (Post 1227565)
What is the truck acting like before the lights and after the lights come on? I know when mine had a misfire on 7 the truck would shake like it was falling apart and even after I fixed it a code still came up but the truck is running like new.

Before the check engine lamp comes on, she runs really strong, no misfiring no shaking, and tons of power, it will out pull anything, but as soon as that light comes on you can feel it shaking and missing.


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