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#8 misfire questions

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Old 11-26-2012, 07:47 PM
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truck
 

Last edited by rerogers; 02-03-2013 at 10:07 PM.
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Old 11-26-2012, 07:55 PM
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That would be a great time to change the timing chain, go for a Cloyes Double Roller from rockauto.com, also water pumps are cheap, and no better time then now.
 
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Old 11-26-2012, 08:22 PM
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...and thermostat and bypass hose.
 
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Old 11-27-2012, 02:47 AM
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Also make sure none of your plug wires are up against #8 injector harness wires.
 
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Old 11-27-2012, 08:48 PM
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Thank you all for the tips.
 

Last edited by rerogers; 02-03-2013 at 10:11 PM.
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Old 11-27-2012, 08:51 PM
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Dont forget to decarbon the engine.. clean/polish your intake ports really good if you can as well or let the soak cyl's soak with either Engine Tune by BMP or the actual Chrysler/Dodge Foaming Decarboniser.. follow the directions in the TSB or on the can closly and have your cat checked.
 
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Old 11-27-2012, 08:51 PM
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Originally Posted by rerogers
Thank you all for the tips. I made sure I routed all of the plug wires correctly and that did not help. So I removed the throttle body and found a small pool of oil in the back of the intake. I will be ordering the Hughes V8 MAGNUM PLENUM REPAIR KIT soon. Hopefully this will fix my #8 misfire issues. I also read that it is a good idea to replace the O2 sensors as well if I have a bad plenum.
Yup, good time to replace the front O2. Also good time do to something with the catalytic converter as it's most likely clogged.
 



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