Misfire can mean ALOT of things. From a bad spark plug, to a bad valve spring. I do not believe the springs would be bad at 34k. Id wait till around 100k then the springs should pop..
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| what kind of sparkplugs http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=14724 |
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| Author: | O_Dogg [ Mon Nov 20, 2006 8:20 pm ] |
| Post subject: | what kind of sparkplugs |
i got some autolite coppers, should i have gottten something better? like bosch's or even ngk r's? is it neccesary to run a higher end plug? we also pulled a code with a scanner it was misfire number 5 cyl. so i figure change the plugs right? i have almost 34k on the 3.7 |
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| Author: | raceinfan [ Mon Nov 20, 2006 8:26 pm ] |
| Post subject: | |
I'd just stick to what the dealer has to be safe but that's my opinion why change if it works proparly |
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| Author: | O_Dogg [ Mon Nov 20, 2006 8:29 pm ] |
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cause my kj doesnt like to start. |
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| Author: | Jeepjeepster [ Mon Nov 20, 2006 8:38 pm ] |
| Post subject: | |
Misfire can mean ALOT of things. From a bad spark plug, to a bad valve spring. I do not believe the springs would be bad at 34k. Id wait till around 100k then the springs should pop..
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| Author: | O_Dogg [ Mon Nov 20, 2006 8:42 pm ] |
| Post subject: | |
yeah true with my luck it would we were thinking the starting issue could be a few other things as well cam sensor, crank sensor, dirty fuel, wet fuel, but i figure change the plugs since i have no idea if it was ever done (only owned for 2 months) |
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| Author: | adamkrz [ Mon Nov 20, 2006 9:56 pm ] |
| Post subject: | |
Stay with the original ngk's,The fancy plugs will cause problems from my own trials with them,Remember they should be replaced every 30k,Mine were well worn when I changed them.. |
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| Author: | JJsTJ [ Mon Nov 20, 2006 10:16 pm ] |
| Post subject: | |
Fresh NGK's every 30-35K miles for a Happy KJ. 
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| Author: | O_Dogg [ Mon Nov 20, 2006 11:41 pm ] |
| Post subject: | |
alright looks like ill be returning the autolites tomorrow for the reg. ngk non resistors |
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| Author: | dkcase [ Tue Nov 21, 2006 8:31 am ] |
| Post subject: | |
O_Dogg wrote: alright looks like ill be returning the autolites tomorrow for the reg. ngk non resistors
I wouldn't bother. I run the Autolites. I change them at 1 year. |
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| Author: | warblade666 [ Tue Nov 21, 2006 9:32 am ] |
| Post subject: | |
Stock plug is an NGK platinum, and they are resister type plugs. At least that's what my '04 calls for. |
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| Author: | desertkj [ Tue Nov 21, 2006 9:37 am ] |
| Post subject: | |
I have Bosch Platinums in mine and have been thrilled. THey need to get replaced though (40K on them now  ).
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| Author: | detroit_doc [ Tue Nov 21, 2006 12:05 pm ] |
| Post subject: | |
If you still get a misfire on 5 try swapping the coil pack to a different position and see if the misfire moves. |
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| Author: | corwyyn [ Tue Nov 21, 2006 2:24 pm ] |
| Post subject: | |
detroit_doc wrote: If you still get a misfire on 5 try swapping the coil pack to a different position and see if the misfire moves.
Good idea, see if it is a bad coil. I never woulda thunk of that one! |
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| Author: | O_Dogg [ Tue Nov 21, 2006 11:03 pm ] |
| Post subject: | |
yeah ill have to try that as well thanks |
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