GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

help... gs400 engine surging at idle

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Old 04-09-07, 09:49 PM
  #31  
Benjamin T
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Originally Posted by GSteg
you know what, I dont ever recall having that low idle issue after my TB was cleaned out. Before cleaning it, I did have one or two occassion where the engine was shaking and it wanted to die.

But I do not know of the problem well enough to decide if this is the cause because I dont know if it only happens to higher mileage cars.
i have over 70k mi now, and my tb was pretty bad. you could actually scoop the crud around the throttle plate with your finger

3 of those holes in my tb were completely blocked. at first the mechanic thought it might be carbon, but a jet from an air nozzle didn't do a thing, and he had to resort to using a cleaner again.
Old 04-10-07, 03:36 PM
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deejay
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Originally Posted by Benjamin T
i have over 70k mi now, and my tb was pretty bad. you could actually scoop the crud around the throttle plate with your finger

3 of those holes in my tb were completely blocked. at first the mechanic thought it might be carbon, but a jet from an air nozzle didn't do a thing, and he had to resort to using a cleaner again.
and the result?
Old 04-10-07, 05:06 PM
  #33  
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Originally Posted by GSteg
Yes sir, all it takes is two of those screws to remove the cover. I dont know if it's okay to clean it without taking it apart. I was cleaning my throttle body and it just happened that it was convenient to clean it at the same time
Just curious, H. What makes you think that it might not be okay to clean out the holes without taking the whole thing apart?

Originally Posted by GSteg
btw. havent seen you in awhile
I've been here, pretty much every night. I just haven't been posting much lately. I wanted to make sure that I didn't pass your post count.
Old 04-10-07, 06:03 PM
  #34  
Benjamin T
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Originally Posted by deejay
and the result?
i posted it earlier:

Originally Posted by Benjamin T
sorry i was away for the long weekend... i did as you recommended and sure enough it was just caked with crap in there. some of the holes were not even visible. the mechanic cleaned it out and thankfully it's idling fine again... thanks GSteg

ps: the gasket was paper
Old 04-10-07, 07:57 PM
  #35  
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Originally Posted by e-man
Just curious, H. What makes you think that it might not be okay to clean out the holes without taking the whole thing apart?
I dont really know. Possibly because when you blast the black gunk in the TB, it might fall into the intake manifold. The engine probably wont have trouble burning it, but who knows. My throttle body was dirty anyways so I cleaned it up.

My idle is smoothher now. No more does the engine sound unbalanced. It use to have this weird noise at idle as if one cylinder was gone. After having this cleaned out, the engine sounds like music to my ears
Old 04-10-07, 09:01 PM
  #36  
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Originally Posted by GSteg
I dont really know. Possibly because when you blast the black gunk in the TB, it might fall into the intake manifold. The engine probably wont have trouble burning it, but who knows. My throttle body was dirty anyways so I cleaned it up.

My idle is smoothher now. No more does the engine sound unbalanced. It use to have this weird noise at idle as if one cylinder was gone. After having this cleaned out, the engine sounds like music to my ears
Interesting. I recently had my throttle body cleaned out. I wonder if they cleaned the holes under the plate. I may have to check that out. Is it me, or do those two screws not look like standard screws?
Old 04-10-07, 09:06 PM
  #37  
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They're both standard screws. #2 Philips screwdrivers is your friend
Old 04-10-07, 11:41 PM
  #38  
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Sweet!!!! I'm having the same problem! and it getting really annoying! gonna pull out the whole throttle body and that plate..can anybody recommend a good, safe cleaner?
Old 04-10-07, 11:57 PM
  #39  
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CRC throttle body cleaner.
Old 04-11-07, 01:02 AM
  #40  
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Originally Posted by GSteg
CRC throttle body cleaner.
Old 04-11-07, 01:08 AM
  #41  
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Originally Posted by GSteg
Glad it worked out for you.

Also thanks to dung0981 for actually cleaning for me. I let him cleaned mine while I stood around enjoying the nice weather
you suck man
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