Cleaned Tb,now tons of white smoke??? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-04-2005, 02:28 PM   #1
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Default Cleaned Tb,now tons of white smoke???

Last night I removed and cleaned my Throttle body.I removed all sensors and cleaned it with a toothbrush and intake safe TB cleaner.I let it sit overnight to dry out and then about an hour ago I put her back together,slapped on a new gasket and fastened all sensors and throttle cable unit.I then proceeded to fire her up,she stuttered at first and then ran smooth about 20 seconds into it.Now I have the huge cloud of white smoke coming out the exaust..I let her run for about 2 minutes, and still white smoke,so i shut hewr down just to be safe ,is this normal?
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Old 02-04-2005, 03:17 PM   #2
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Is everything else checking out ok? It might of just been really dirty inside there!
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Old 02-04-2005, 04:40 PM   #3
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Just finished Auto tapping her and everything seems to be in the norm ,Exaust went back to norm by the time i was finished tappin her ,and man I swear the SC whine got a few decibals louder
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Old 02-04-2005, 04:44 PM   #4
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Everything is fine. Take it out for a drive, and make sure you go wide open to blow all the carbon out. You may have to go wide open more than once to clear it all out.
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Old 02-04-2005, 05:09 PM   #5
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Quote:
Originally Posted by CSFiend
Everything is fine. Take it out for a drive, and make sure you go wide open to blow all the carbon out. You may have to go wide open more than once to clear it all out.
A few times sounds better, WOT is better for the environment, so all you environmental freaks, just think of that when you don't want to pollute the air too much.


-justin
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Old 02-04-2005, 06:11 PM   #6
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Keep an eye on it. White smoke could be coolant leaking through the gasket into the TB, and being burned off in the cylinders. Watch the overflow tank for a couple weeks, and then breathe a sigh of relief.
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Old 02-04-2005, 10:30 PM   #7
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The one solution I didn't even think of was the TB gasket. Usually when we clean throttle bodies at my shop (which is a very complete cleaning, BG products and toothbrushes) it'll blow white smoke like crazy until the carbon is done blowing out.
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Old 02-05-2005, 11:17 PM   #8
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So far so good,White smoke is gone and she'* running better than ever.Tomorrow Im doing Gm top engine clean,followed up by oil change and plugs and wires.
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Old 02-07-2005, 10:55 AM   #9
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If its running good why not leave well enough alone.
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Old 02-07-2005, 11:54 AM   #10
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Quote:
Originally Posted by SSEBONNE4EVA
If its running good why not leave well enough alone.
Just because your lady seems happy doesnt mean you shouldnt bring her home flowers anyway. I owned the car for over 2 years now and she runs fine,but the car is 7 years old now,so she'* well overdue for a little tlc.After the TB cleaning,Plugs and wires,Gm top engine cleaner and oil change she'* peppier than ever.A little TLC goes a long way .
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