03-30-2005, 09:03 AM
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#1
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AF Regular
Join Date: Jan 2005
Location: Dallas, Texas
Posts: 100
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Only 1 plug had carbon build up
I seach this forum and did not find anybody with the same prob.
The passanger middle plug keeps getting carbon build up. This will make my stops and idle hesitant.
I do burn oil from the tail pipe (no leaks), about 3-4 qts a week or after driving 500 miles. I only see smoke from the tail pipe when I accelerate quickly. Is this my issue? I use STP gas cleaner 2-3 times a month.
Thanks
91 s-10 155k miles, v6 4.3l motor.
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03-30-2005, 09:33 AM
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#2
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AF Fanatic
Join Date: Oct 2004
Location: Muskegon, Michigan
Posts: 2,835
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Re: Only 1 plug had carbon build up
overdoing the additive for one, and two, do a compression and leak down test, if that turns out ok, then the oil is most likely getting past a lifter.. and your pro says 91 s 10, but what moter? that will help to deturmen the problem
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03-30-2005, 11:55 AM
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#3
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AF Regular
Join Date: Jan 2005
Location: Dallas, Texas
Posts: 100
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I put it in the origianl post, but here it is.
91 s-10 155k miles, v6 4.3l motor.
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03-30-2005, 07:44 PM
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#4
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Banned
Join Date: Jul 2004
Location: who gives afuck
Posts: 3,931
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Re: Only 1 plug had carbon build up
Low compression in that cylinder.
I've had a simular prob with another truck once.
going through that much oil without a visible leak usually means it's time for a rebuild.
for you to loose that much oil from a leak it has to almost pour out while running. I've really only seen this happen past broken sending units
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03-30-2005, 08:49 PM
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#5
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AF Regular
Join Date: Dec 2004
Location: Lenexa, Kansas
Posts: 225
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Re: Re: Only 1 plug had carbon build up
Time for New rings. My truck is doing the same thing. Ready for a rebuild.
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03-30-2005, 09:22 PM
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#6
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AF -Advisor
Join Date: Sep 2003
Location: Sudbury
Posts: 13,562
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Re: Only 1 plug had carbon build up
you burn 3-4 qts a week?
__________________
1995 Factory Blazer Service Manual for sale, PM if interested.
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03-30-2005, 09:30 PM
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#7
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AF Fanatic
Join Date: Oct 2004
Location: Muskegon, Michigan
Posts: 2,835
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Re: Only 1 plug had carbon build up
ill beleve it, when i first got my honda it was going through 2 a week
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03-30-2005, 09:41 PM
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#8
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AF -Advisor
Join Date: Sep 2003
Location: Sudbury
Posts: 13,562
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Re: Only 1 plug had carbon build up
i WOULD REPLACE THE pcv VALVE.
__________________
1995 Factory Blazer Service Manual for sale, PM if interested.
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03-31-2005, 04:00 PM
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#9
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AF Regular
Join Date: Jan 2005
Location: Dallas, Texas
Posts: 100
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Re: Only 1 plug had carbon build up
have put a new pcv in, what will that fix though
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03-31-2005, 09:42 PM
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#10
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AF -Advisor
Join Date: Sep 2003
Location: Sudbury
Posts: 13,562
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Re: Only 1 plug had carbon build up
oil consumption.
__________________
1995 Factory Blazer Service Manual for sale, PM if interested.
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04-03-2005, 11:10 PM
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#11
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Banned
Join Date: Jul 2004
Location: who gives afuck
Posts: 3,931
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Re: Only 1 plug had carbon build up
No promises but if you can take your truck off the road for 1 or 2 days right before the next oil change, pour in some ATF fluid, or coal oil into that 1 cylinder through the spark plug hole it might loosen up the rings.
If your motor wasn't sitting for a while this trick probably won't work, it just helps loosen up mildly gummed up or rusty rings usually caused by sitting
Some of this oil will probably drain past the rings which is why I said before the oil change.
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04-06-2005, 11:33 AM
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#12
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AF Regular
Join Date: Jan 2005
Location: Dallas, Texas
Posts: 100
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Re: Only 1 plug had carbon build up
Thanks Over I think I will try that, is that oil sold at any autopasrt store?
Thanks
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04-06-2005, 01:43 PM
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#13
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AF -Advisor
Join Date: Sep 2003
Location: Sudbury
Posts: 13,562
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Re: Only 1 plug had carbon build up
No, do not put ATF and run your engine offroad.
What you need is a safer alternative that doesn't thin the oil out.
Try this stuff www.Auto-rx.com
I am currently using it and you won't believe how much it has helped my engine.
__________________
1995 Factory Blazer Service Manual for sale, PM if interested.
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04-06-2005, 07:11 PM
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#14
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Banned
Join Date: Jul 2004
Location: who gives afuck
Posts: 3,931
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Re: Only 1 plug had carbon build up
That's why I said pour it in the spark plug hole, and just let it sit 1 or 2 days before your oil change.
It'll hopefully remove the gum from the rings, and loosen them up
Your right though LT, adding ATF to your oil will thin it out way to much
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