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> Engine and Transmission > Cleaning A Sticky Throttle... Pictures Included
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Tribby030144
Platinum Member

Registered: Jan 2007
Location: Newcastle Australia
Posts: 830

Cleaning A Sticky Throttle... Pictures Included

Hello all,
I was reading the threads on how to clean the TB so I thought i'd give it a go. Idle is much smoother now. Thanks prowlie
I took some pictures to show anyone who was wondering where the throttle body is.


quote:
Originally posted by prowler


Here's what I did, an 80% solution, but so simple and fast (about 15 minutes) that I intend to do it each Spring as part of the air filter check. The hardest part is being careful not to drop the 3 recessed nuts that hold the engine cover in place.

Removed the obvious:
air filter and housing (unplug wire, leave MAF in housing)
rubber tube (approx. 4 inch diameter) to throttle body
front engine cover - (to open the throttle with left hand while cleaning with right) - 3 easy nuts

Opened throttle about a 1/16"
Sprayed quickly around butterfly edges - about 1 second
opened full throttle and used a microfiber towel wrapped around finger to clean

repeated, but used fingers to "massage" the ridge of gunk - you can feel as it dissolves away.

I got 90 percent off the bottom, 80 percent around the top. Wasn't too fussy near the shaft since leverage is on your side.












Also cleaned the gunk off the throttle cable


Hope this helps some people out


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Tribby030144 is offline Old Post 09-21-2007 04:28 PM
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prowler
Hyperdrive

Registered: Nov 2002
Location:
Posts: 6549

prowlie illustrated - THANKS, t03!!!

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prowler is offline Old Post 09-21-2007 05:52 PM
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Squishy
Platinum Overdrive

Registered: Nov 2005
Location: Orillia, Ontario
Posts: 3649

That throttle body didn't look too bad; mine was way worse before it started to stick. Good job on the pictures; I'll add it to that how-to thread.


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Squishy is offline Old Post 09-21-2007 06:20 PM
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CRUI5N
2nd Gear

Registered: Sep 2007
Location: Melbourne, Australia
Posts: 217

nice one mate. i pulled my TB off as it was only two bolts and 30 seconds to do. really easy to give it a good clean inside and out this way.

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CRUI5N is offline Old Post 09-24-2007 12:06 PM
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bobkat
3rd Gear

Registered: Aug 2006
Location: Pittsburgh, PA
Posts: 314

Thanks for that information Tribby, well done.


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bobkat is offline Old Post 09-24-2007 09:02 PM
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mishmish
New Member!

Registered: Jun 2006
Location: Australia
Posts: 47

Sorry, but i have a bit of a stupid question.
I got as far as your photos, looking straight into a SHUT butterfly valve in the throttle body. I was able to push mine open a bit with my finger, but encountered a lot of resistence.
How to you manage to get yours 100% open? Also spraying IN towards the engine? Does the carbon etc from the spray foul the upper cylinder head area? Where does the gunk go?


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RoadKingTrib
Platinum Overdrive

Registered: Mar 2002
Location: Pittsburgh, PA/Greenwood, SC
Posts: 2484

quote:
Originally posted by mishmish
Sorry, but i have a bit of a stupid question.
I got as far as your photos, looking straight into a SHUT butterfly valve in the throttle body. I was able to push mine open a bit with my finger, but encountered a lot of resistence.
How to you manage to get yours 100% open? Also spraying IN towards the engine? Does the carbon etc from the spray foul the upper cylinder head area? Where does the gunk go?



It gets burned up and/or expelled with the first turn of the motor.


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RoadKingTrib is offline Old Post 02-17-2009 03:42 PM
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mishmish
New Member!

Registered: Jun 2006
Location: Australia
Posts: 47

Yup. gotcha!

Had another attempt today, got throttle butterfly valve open all the way and gave it a spray!.

The car had trouble starting at first but seemed to run ok after that.

The reason i attempted another clean today was that coming home this afternoon the tacho was going up and down like a yo-yo, and the car splattering and missing.

I think this possibly was due to me washing the engine bay the other day and water getting into the coil pack/s.

Hope all is well tomorrow!

Thanks for a good thread.


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mishmish is offline Old Post 02-18-2009 12:04 PM
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4x2
Platinum Member

Registered: Aug 2002
Location: Metro Detroit
Posts: 937

Tribby,

Nice pics!

Sometimes I just spray my TB and other times I'll remove it and give it a thorough cleaning to get it spotless.

NOTE: For those of you who opt to remove it - a little silicone grease on the TB gasket is a good idea so it doesn't tear the next time your remove the TB. If it does tear you'll likely have a vacuum leak that'll be tough to diagnose - it happened to a member here.


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4x2 is offline Old Post 02-19-2009 02:26 AM
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