Carbon Buildup

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Carbon Buildup

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Carbon Buildup - 11/13/2007 3:03:14 PM

WolfPack

Posts: 3071
Joined: 10/30/2007
From: Raleigh, NC
Status: online

I took my blazer in for a oil change and maintenance inspection, and they told me I have significant carbon build-up. They said that's the reason my gas pedal sticks a little when I accelerate (takes an harder step than normal, then it breaks free and is fine rest of the drive). My question is what is the best way to remove this carbon build-up? I checked the throttle cables from the firewall to the throttle body and nothing is obstructing/carbon-y, but I sprayed some carb cleaner on there to see what happens. Will running some STP fuel system cleaner/injector cleaner clear up some carbon deposits?

I've got 95k miles on it, and I know I need to replace my fuel filter. Should I replace the filter prior to running the system cleaners?

Thanks for all the help!

< Message edited by WolfPack -- 11/13/2007 3:05:18 PM >

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2000 Blazer 4d LS 4x4 - 265/70/15 General Grabber AT2s - Hunter Brush Guard - Surco Roof Rack with IPF 868s - 1.5'' Shackle + Tbar - 2'' BL

Post #: 1

RE: Carbon Buildup - 11/13/2007 3:05:59 PM

swartlkk

Posts: 15276
Joined: 5/1/2005
From: Waterloo, NY
Status: online

The carbon buildup they speak of is inside the throttle body. You can attempt to clean it without removing it from the engine, but it is best to thoroughly clean it with it off of the engine. Use some sensor safe carbon cleaner and an old tooth brush for stubborn spots.

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Kyle-

04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help

(in reply to WolfPack)

Post #: 2

RE: Carbon Buildup - 11/13/2007 4:23:07 PM

WolfPack

Posts: 3071
Joined: 10/30/2007
From: Raleigh, NC
Status: online

Thank you! I'll do that this weekend!

Also, when I was doin some research, I read some articles about how the fuel additives and cleaners can be pretty harsh on the engine? A few sites I looked at even said to never put those in. Is there any stock in that?

_____________________________

2000 Blazer 4d LS 4x4 - 265/70/15 General Grabber AT2s - Hunter Brush Guard - Surco Roof Rack with IPF 868s - 1.5'' Shackle + Tbar - 2'' BL

(in reply to swartlkk)

Post #: 3

RE: Carbon Buildup - 11/13/2007 7:12:55 PM

swartlkk

Posts: 15276
Joined: 5/1/2005
From: Waterloo, NY
Status: online

I have been running fuel injector cleaner (of one type or another) at every oil change in all of my vehicles for a very long time. I have noticed no ill effects from using cleaners.

I prefer Chevron w/ Techron now, however, I will say that I have had better results lately with GM fuel system cleaner on my grandfather's old pickup. If used as a preventative measure, Chevron works great at keeping everything in tip top shape.

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Kyle-

04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help

(in reply to WolfPack)

Post #: 4

RE: Carbon Buildup - 11/14/2007 10:13:16 PM

lennyblazer

Posts: 1988
Joined: 5/6/2007
From: Appleton, WI / Houghton, MI
Status: offline

There should be no ill affects as long as you get one that is for a fuel injected vehicle. Also don't get stuff like race fuel/octane booster products (pretty much anything that says blatently on the front that it is gaurentted to increase horsepower). I have had good results with STP, Gumout, and Chevron w/ Techron.

Hope this helps, as far as before or after the fuel filter. My guess is more would go through a new filter that isnt all gunked up so it would probably benifical to add the fuel treatment after the fuel filter change.

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-Lenny
4.3L Auto. 3.73Gears