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burton907 03-21-2010 05:54 AM

Spring cleaning questions
 
So cleaning the tb. What do I look for to see if it's dirty?

I hear about cleaning the iac, well... How?? Carb cleaner? Brake cleaner? Rag?

Oh and I assume I need to remove my tb to clean it?

Help please!!!!

boss_hemi 03-21-2010 10:11 AM

Re: Spring cleaning questions
 
you should just have to remove the rubber intake boot off the throttle body and spray carb cleaner in there.. careful not to ge any foreign objects in there lol, could turn your day into a bad one. make sure you tighten the clamp good when you're done

Joe in PA 03-21-2010 12:18 PM

Re: Spring cleaning questions
 
Here's a link to a thread I posted a few months ago. Some folks like to remove the tb to clean it. I and others just leave it on. Not to sure about cleaning the IAC as I've never done so myself.

http://jeepgarage.org/showthread.php?t=3172

burton907 03-22-2010 01:32 PM

Re: Spring cleaning questions
 
perfect, thanks Joe!

now does anyone have any idea how to clean the IAC?

StoneCold 03-29-2010 03:44 AM

Re: Spring cleaning questions
 
Cleaning the IAC is easy. Just remove the screws and unclip the connector. Pull it out.
http://i33.photobucket.com/albums/d5...w/IMG00468.jpg
This is a dirty one....

http://i33.photobucket.com/albums/d5...w/IMG00471.jpg
And this is it clean.

Then it's the reverse for re - installing

John_R 03-29-2010 10:10 AM

Re: Spring cleaning questions
 
If you clean the TB with it on the vehicle (which I did recently but going to again soon, plus pull that thing out this time), I would use throttle body spray and not carb cleaner! [if you remove the TB then carb cleaner may be alright] Reason being, is the sensors may not like the carb cleaner and TB spray is intended for fuel injected and is safe for sensors and such.

btw - my check engine light came on for a day after doing the cleaner, as a heads up. Wasn't worried about it and it eventually cleaned itself up, but just don't freak out if you see it coming on (provided you didn't do something unrelated); just drive for awhile.

John_R 03-29-2010 10:22 AM

Re: Spring cleaning questions
 
Oh yeah, another thing that works well: Sea Foam. Wal-mart has it for $8.97 and auto parts for ~$10.

I found the easiest one to use is the vacuum line to the check valve on the brake booster. Pull off the hose from the valve and I used one of those syringe deals and S-L-O-W-L-Y pour some of it (up to 1/3 of the can) while the engine is RUNNING; you have to find the balance so it doesn't stall. Afterawrd, shut off, let it sit for 5 minutes or so and start-up. Depending on how much gunk you have, may be difficult to start at first and you'll get a crapload of smoke at first, but drive it hard for a bit to get it all burned up. I repeated a couple times over a few days.

Essentially, it cleans out the carbon build-up in the combustion chamber when used thru the intake...One thing I notice though, is it can contaminate your oil a little, so I'd do it close to oil change time. You can also add it in the fuel or in the oil itself, although I like it the intake way.

Dodge makes a similar product (they used to talk about it alot on the jeep boards), but it's a different procedure; iirc, you removed the plug(s).

fwiw, water can do the same thing, but is a different procedure and you have to really have the engine revving. The water mist turns into steam and does a similar thing as sea-foam. That is one nice thing about a water injection system on a forced induction engine :)

Either way, getting rid of the carbon helps keep detonation at bay (when an engine has a bunch of carbon, it can burn/remain hot enough to spark cylinder mix at wrong time), for one thing, but you can imagine from an airflow pov (valves), it should help too.

FlyinRyan 03-29-2010 02:55 PM

Re: Spring cleaning questions
 
Seafoam is hell on O2 sensors, plugs, and oil....


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