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Old 04-17-2008, 12:26 PM   #1
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Default Sticky gas peddle

The gas peddle is hard to push down after first starting the car. After that, it'* normal.
I lubed the linkage where the gas peddle cable attaches to the plenum, but it didn't seem to help, so I guess the problem is inside the plenum.
(The service-writer at the dealership said the mechanism can get dirty and cause this problem)
He said I'd need to remove the plenum to clean it, but I'm wondering if I can get at it by removing the air intake. Ideas anyone?
Thanks, Joe
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Old 04-17-2008, 01:27 PM   #2
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The inside of the throttle body probably has a lot of build up, it can be cleaned easily.
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Old 04-17-2008, 02:28 PM   #3
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Cleaning the throttle body fixed it when I had this problem. It was pretty dirty.
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Old 04-17-2008, 02:31 PM   #4
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I have the same problem with mine, and it probably is the throttle body, but I've been too lazy to fix it
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Old 04-17-2008, 02:45 PM   #5
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Thanks Gentle-Dudes.
Can you do it through the air-intake in the plenum?

Later, Joe
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Old 04-17-2008, 02:49 PM   #6
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You'll have to take the whole air intake off, and the throttle body to get to the real bad stuff. The carbon build-up that'* causing your issues is on the engine side of the throttle body. Also, while you're in there, clean your MAF sensor (carefully) with rubbing alcohol and q-tips. Oh, and make SURE to put some paper towels underneath the throttle body, because when you take it off, coolant will come out

http://www.bonnevilleclub.com/forum/...e=article&k=64
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Old 04-17-2008, 02:55 PM   #7
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Thanks Petraman.
How many gaskets will I need? Just the one under the plenum?
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Old 04-17-2008, 03:00 PM   #8
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What kind of Bonnie do you have? (trim level (se, ssei, etc.), year). It would also be awesome if you put that info in your signature
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Old 04-17-2008, 03:24 PM   #9
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http://www.bonnevilleclub.com/forum/...e=article&k=64

Above is a link to the Techinfo article about how to do this.

To answer your question, yes it can be cleaned by removing the air intake. But there'* a honeycomb over the metal opening that'* a real bear to get out without distorting it.

Only the throttle body needs to come off the end of the UIM. Remove the sensors that are in it like they suggest in the Techninfo.

A new gasket for the END of the UIM between it and the throttle body is what I would put on. They're available separately.

I tried doing this through the end of the throttle body and damaged a couple of fins on the honeycomb trying to pull it out with paperclips. It'* a force fit.

One time I was able toclean the inside with a soft cloth on a wood stick and intake cleaner spray on the cloth. Another time it didn't make much difference for very long.

The real cure is to take it off and thoroughly clean. That will fix it for another 80K miles.
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Old 04-17-2008, 05:47 PM   #10
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Big thanks imidazol and petraman.
Petraman, it'* a 2002 plain-jane Bonneville (non turbo-charged)

Later, Joe
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