#8 misfire questions

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Nov 26, 2012 | 07:47 PM

rerogers

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truck

Last edited by rerogers; Feb 3, 2013 at 10:07 PM.

Nov 26, 2012 | 07:55 PM

stewie01

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From: Fredericksburg, Virginia

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.

Nov 26, 2012 | 08:22 PM

Arde

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...and thermostat and bypass hose.

Nov 27, 2012 | 02:47 AM

ReadRam

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From: fargo, n.d

Also make sure none of your plug wires are up against #8 injector harness wires.

Nov 27, 2012 | 08:48 PM

rerogers

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Thank you all for the tips.

Last edited by rerogers; Feb 3, 2013 at 10:11 PM.

Nov 27, 2012 | 08:51 PM

jondakotaguy

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From: Texas

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.

Nov 27, 2012 | 08:51 PM

stewie01

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From: Fredericksburg, Virginia

Quote:

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.