Running like poop maybe internal fuelleak
06-06-2009, 08:09 AM
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Running like poop maybe internal fuelleak
just courious of anyone has any ideas why my two middle spart plugs are carbend up BIG TIME.
now i just bout the car it had been sittin for a wile year or so. i went to change the spark plugs and noticed the center spark plugs are black. so i changed them all and drove around for the day. this morning i check the spark plugs and again two middle ones are black. any ideas????
now i just bout the car it had been sittin for a wile year or so. i went to change the spark plugs and noticed the center spark plugs are black. so i changed them all and drove around for the day. this morning i check the spark plugs and again two middle ones are black. any ideas????
Last edited by circapunk; 06-07-2009 at 07:33 AM.
06-06-2009, 08:22 AM
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Re: My Two middle spark plugs are BLACK!
Bad piston rings? burning excessive oil? does it spit black smoke from the exhaust? any oil residue on the porcelain?
06-06-2009, 08:44 AM
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Re: My Two middle spark plugs are BLACK!
I am thinking if they aren't shiny(oily) then you may have a problem with the injectors leaking.
Quick test clean the plugs then swap the injectors to the outer cyl see if the black plug syndrome follows.
Remember to put a bit of engine oil on the o rings so the injectors slide in and don't wreck the o rings.
Quick test clean the plugs then swap the injectors to the outer cyl see if the black plug syndrome follows.
Remember to put a bit of engine oil on the o rings so the injectors slide in and don't wreck the o rings.
06-06-2009, 11:46 AM
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06-06-2009, 08:09 PM
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Re: My Two middle spark plugs are BLACK!
well i think im in the same boat b/c all of my spark plugs are black, but their dry black. my friend said that it could be the o2 sensor, b/c i don't have my o2 sensor install, but do u get an idle or a rough idle...?
06-06-2009, 08:17 PM
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Re: My Two middle spark plugs are BLACK!
ya def. put the O2 in. and id check the grounds at the thermostat houseing make shure there not all nastied up. your car wount go into loop so your computer isent getting the info it needs to set your fuel and air ratio correct. so it is prob. dumping fuel just to stay running.
06-06-2009, 08:21 PM
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Re: My Two middle spark plugs are BLACK!
yup thats what my friend said so if i dont have a o2 sensor would my car be idling as well? or what do u think...?
06-07-2009, 06:36 AM
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Re: My Two middle spark plugs are BLACK!
and also when i unplug the injector harness connectors two of them them make my car die. and the other two dont do anything at all just keeps on runnin
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