TB cleaning and sea foam at 117k miles... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-04-2006, 10:44 AM   #1
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Default TB cleaning and sea foam at 117k miles...

Hey yall. I was thinkin this weekend I was gonna take off my throttle body and clean that thing out as well as try to adjust the tps or replace it. I was reading back on some of the other post here and was wonderin if maybe a sea foam treatment would also help clean things out or would it possibly cause more problems than it would be worth just to clean out the internals.

What I was thinkin is that I would go out after work and get 2 cans of sea foam and put some in the gas and oil then on sunday do the whole vac line thing. But Im kinda hesitant to try that as this is a 14 year old car that has never really had any major engine maintnence done. Just regular fluid changes, belts, hoses, mounts, and a couple of sensors. All the gaskets, seals, rings, and other parts on the internal engine are original and I would really hate to screw the whole thing up by doing something like this.

I also was reading some stuff (I think Wilwren posted this) about water injection or just spraying some water into the intake to "steam clean" parts of the internals (intake manifold I believe). Would that be a better idea than the sea foam or was he talkin about 2 different things?

Any advise, words of caution, or any thoughts on the subject will be greatly appreciated.

Im gonna take off to work in a few minutes but I should be home about 9pm central time.
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Old 08-04-2006, 10:59 AM   #2
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Paco, Seafoam will give you better results in a short period of time. Water injection takes longer to have an effect. It works out for me with occasional use, but all I have to do is hit a switch.

I'd suggest the Seafoam in the vac line for you. But do keep in mind you'll have to change your oil and spark plugs afterwards, and there is a theory that if your catalytic converter is older, it may clog it (this may not be true, as the cat operates at very high temperatures, and may be able to burn off the waste residue just fine).
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Old 08-05-2006, 12:29 AM   #3
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Just Seafoamed mine last weekend. Mine is a 1990, with 118k miles. It was really carboned up though. Pinged badly on acceleration. Did one can per tankful for 2 fill ups, and a third can burped into the intake thru a vacumn hose, over several days till the can was gone. Just followed the instructions on the can. Pinging is almost completly gone now and smoothness and acceleration is improved. YMMV.
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Old 08-05-2006, 12:50 PM   #4
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Thanks Willwren and crzydmnd72. In a few minutes Im gonna go to the AC Delco warehouse thats about 20 minutes from here. Gonna get some plugs, wires (thinkin I might go to Napa for those though. Belden Premiums seems to work better for people here), oil filter, coil packs, and depending on how much money I have left over an O2 sensor and TPS.

One question though, should I remove the MAF sensor when I do the whole Seafoam thing? From what Ive read here, those things can get messed up over any little amout of fluid, dirt, dust, and basicly any other crap that can get in there.

Thanks again for yalls help, I really appreciate it. This car is my daily driver as well as a teacher for me where it comes to cars. I wanna learn as much as I can about this thing as well as keep it runnin perfectly (or as close to it as I can on a VERY limited budget and for it being a 14 year old car).

Sam
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Old 08-05-2006, 01:29 PM   #5
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If you follow the directions here, nothing can get on your MAF sensor. You insert the seafom at a vacuum line BEHIND the MAF sensor.

Why are you replacing expensive coil packs? Have you checked them using the procedure in Techinfo?

Remove your MAF sensor before cleaning the TB though. Those instructions are in Techinfo also.
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Old 08-05-2006, 01:54 PM   #6
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The coil packs are testing 13-14k ohms secondary (magnavox) which is a little high. According to the techinfo, they should be 9-12k. I didnt test the primary but I should to see if those are off as well.
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