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2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Clean your throttle body!

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Old 02-24-2008, 12:52 AM
Ramman18 Ramman18 is offline
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Default Clean your throttle body!

Well, I finally got the nerve to do it. Chilton had nothing helpful and everything I found in searches just said "remove TB and clean." So I figured it can't be that bad. And truthfully, it isn't. But it looks daunting. So for those who need an encouraging word, here goes:

Tools:
-1/2 inch socket or wrench
-flat screwdriver
-small torx head screwdriver
-new TB gasket ($4)
-TB/carb cleaner
-rags
-pliers
-tin of cope


1. Remove air cleaner with a flat head screwdriver (man, I'm getting sick of that stock box)
2. Remove the front sensor clip. There's a little tab on top of the clip that is flush but you push it down and pull and it just unhooks.
3. Remove the side sensor clip. Same as above.
4. Reach around the tb and unclip the IAC sensor by pushing out on the tab and pulling. It's different than the other two.
5. Remove the small vacuum tube from the front of the tb by just pulling it out.

Now you're down to the throttle cables. I had no prior idea how they came off but just studied them for awhile and figured it out.

There's two cables, the one on the passenger side goes first.
6. Unclip the cable end (small plastic c-shaped clip) by pulling the throttle linkage forward for slack and pushing the cable clip backwards. It's very similar to a tiny version of a cell phone belt clip holster.
7. Unclip the other cable in the same manner.

At this point, you're ready to unbolt the tb. You'll need a ratchet and 1/2 inch or equivalent metric. I used 1/2 inch. They were on tight so time for elbow grease.

8.Loosen all four bolts and remove. I laid them out in the same pattern so they went in the same holes later.

Now CAREFULLY lift off the TB and move it slightly towards you so you can access the throttle cables retention clips on the black bracket. I set the assembly gently on the fan shroud while I stuffed a clean rag into the plenum.

9. Each throttle retention clip is unique. For the outside one you'll need a pen to push in the retainer dimple and pull up. The inner one needs pliers to sqeeze the top and bottom and pull out.

Now it's time to clean. You'll need throttle body/carb cleaner, rags, toothbrush or similar, q-tips, and a torx (star shape) head screwdriver. I had one in my small Craftsman case. Most tool kits should have them.

10. Remove all three sensors using the torx driver carefully. When you remove the IAC you'll see why this was a good idea. Mine was completely black and gunked up. The TB bore was all black too. I spent atleast an hour cleaning all the crevices and nooks of the TB and then the IAC. CAUTION!!!!!! Be VERY gentle with the IAC as it is over $100 to replace. Use the q-tips to gently rub the crap off and it will look like brass again. I never sprayed cleaner into it or moved the plunger at all.

Once you're satisfied with the cleaning, just re-install everything using a new gasket. I don't have a torque wrench so I just criss-cross tightened them good and tight. Now, was that so bad?
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Old 02-24-2008, 03:30 AM
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Default RE: Clean your throttle body!

Map , TPS , Iac use # t25 torx screw driver
1/2 = 13 mm
instead trying to take the cables of the bracket , take the bracket of the TB 3 bolts ,
IAC 100 buxs ?? dealer item , other part stores sells em at 58 bux , gotta be careful how much you tighten down on the bolts ..
You do know there is a DIY TO THIS ??
when you had the TB off did you look down into the KEG to see if there was any oil pooling ?? (need a flashlight and a mirror)
and when you had the MAP , IAC , TPS unplug did you clean the connectors with CRC Lectra-Motive Electric Parts Cleaner and put some Di-Electric Grease ?? every time i pull a connector apart it gets clean up ..detail
other then that good job !!!
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Old 02-24-2008, 06:46 PM
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Default RE: Clean your throttle body!

nice job.
now your ready for bigger and badder things.
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Old 02-24-2008, 07:56 PM
1BigRamaniac 1BigRamaniac is offline
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Default RE: Clean your throttle body!

I just shot mine out with carb cleaner. Was I supposed to take it off?
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Old 02-24-2008, 07:57 PM
DodgeFan01 DodgeFan01 is offline
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Default RE: Clean your throttle body!

Ramman, thanks a lot dude for this write up!! I was just thinking I need to clean my throttle sometime. Just gotta wait for mother nature to give me a non-rainy day
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Old 02-25-2008, 08:51 PM
Gene563 Gene563 is offline
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Default RE: Clean your throttle body!

I recently cleaned mine as well and I did as PA said. I removed the 3 screws and took the cable bracket off the TB. The IAC on mine was black and crusty. I sprayed the crap out of it. Something I discovered, the sleeve on the plunger shaft will slide in( spring loaded ). I spayed and moved this around until moved freely. shook out the cleaner and hit it with WD40 before reinstalling it. The TPS I cleaned with contact cleaner. Someone had a write-up here about drilling a hole in it, cleaning it then covering the hole with electrical tape.
It runs great ever since and cured my stalling problem.
I also installed a round, Edelbrock, 10 inchair cleaner. My thread, Thanks and a round AC, has pictures of it.
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Old 02-28-2008, 08:04 AM
WD OPN Throttle WD OPN Throttle is offline
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Default RE: Clean your throttle body!

How easy was it to start after that Rammaniac?
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Old 02-28-2008, 09:06 AM
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Default RE: Clean your throttle body!

Quote:
ORIGINAL: 1BigRamaniac

I just shot mine out with carb cleaner. Was I supposed to take it off?
Yes, that is the preferred way to clean it so you don't wash all the gunk off it down into the intake.
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Old 02-28-2008, 10:44 AM
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Default RE: Clean your throttle body!

Wouldnt using WD40 on the TB be a bad idea, concidering is flammable?
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Old 02-28-2008, 11:01 AM
turkeyhunter1962 turkeyhunter1962 is offline
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Default RE: Clean your throttle body!

Cleaning the throttle body is a nice "first step" for someone with limited mechanical experience. It really helps improve your knowledge and improve your understanding of what us other gear heads are talking about.

Something else I would recommend is to ALWAYS install a new throttle body gasket whenever you remove the TB (less than $1 at NAPA - I buy them a half dozen at a time), and use di-electric grease on all of the electrical connections like padodgeram mentions.
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Old 02-28-2008, 11:07 AM
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Default RE: Clean your throttle body!

Quote:
ORIGINAL: Mowhawk

Wouldnt using WD40 on the TB be a bad idea, concidering is flammable?
Look at the carb cleaner , brake cleaner , pb blaster , there all fammable .... some engine cleaners are flammable...Once you know what the flash point is , and knowing is half the battle..
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Old 03-27-2008, 02:12 PM
1BigRamaniac 1BigRamaniac is offline
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Default RE: Clean your throttle body!

Starting was no problem.And there was no flameup. I was talking about a quick surface cleaning. If you want to get to all the tiny cracks and crevices (and feel you need to)you will have to take it off. Mine was just a surface cleaning. I have 13 years and close to 200k now. Perhaps I should take it off to clean it.
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Old 05-04-2008, 11:19 PM
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Default RE: Clean your throttle body!

Ok so i just clean my throttle body today.. It was realy dirty.. the underside of the butterflies were black and so was the tip of the MAP sensor. I got everything cleand up and put backtogether but now its ideling weird. Could the MAP sensor be reading differently now that its clean and its just taking time to ceatch up. I was very carefull with the sensors and put di-electric greese on the contacts before i put it back together. Anyone else have their's idle weird after a clean up.
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Old 05-04-2008, 11:24 PM
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Default RE: Clean your throttle body!

reset the PCM and let it relearn , disconect the + on the battery for a min...
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Old 10-19-2009, 10:37 AM
ridehard1 ridehard1 is offline
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Default Just cleaned TB this weekend

I just removed and cleaned my TB (tb cleaner) It was nasty. I sprayed contact cleaner in the elecrtic componets and re installed. It was "fluttering" at cruising speeds.
Didnt matter if I was running 30 or 60 it still feels like its not under full power. It still hesitates and backfires sometimes. I am at a loss as to what to do next. What do ya,ll think I should do now??
98 Dodge 318/5.2 1500
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Old 10-19-2009, 10:50 AM
Twisted Metal Twisted Metal is offline
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reset the PCM and let it relearn , disconect the + on the battery for a min...
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Also, did you remove the components to clean them? The TPS? IAC? Did you remove the TB to clean it? There are 2 excellent DYI's for both TB cleaning and how to clean the TPS and IAC in the DYI section up top.
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Old 10-20-2009, 08:11 AM
ridehard1 ridehard1 is offline
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Thanks for the info. Yes I did take it (TB) off and cleaned everthing.All the sensors,with contact cleaner.All the plugs looked good. The IAC was filthy and cleaned up well. I didnt try to push it in to see if it operated.I figured it moved electrically. I will try and dissconnect the POS (+) side of battery to see if it resets everything. Where is the PCM located???
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Old 11-03-2009, 12:08 AM
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Quote:
Originally Posted by ridehard1 View Post
Thanks for the info. Yes I did take it (TB) off and cleaned everthing.All the sensors,with contact cleaner.All the plugs looked good. The IAC was filthy and cleaned up well. I didnt try to push it in to see if it operated.I figured it moved electrically. I will try and dissconnect the POS (+) side of battery to see if it resets everything. Where is the PCM located???
On my 97 ram its on the pass side on the firewall its a metal box with 3(?) connections on it. (i think its three).
And my ram used to be a work truck and has 167K miles on it, you think I need to clean the Tb?
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Old 11-03-2009, 02:09 AM
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Yep and do the plenum fix. Do a search on it.
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Old 11-03-2009, 04:40 AM
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Seafoam!!!!!!! well advanced autoparts brand fuel injector cleaner, let it idle pour a little in the intake cleans out the intake and TB pour a little into the crankcase, dump the rest of the bottle in the gas tank. thats what i was told and thats what I did. she runs better and has better response and pickup, now i chirp the tires without even trying. better mileage too after even with gettin into the gas a little at every red light.
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Old 11-03-2009, 04:40 AM
 
 
 
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01, 1500, 40, access, body, cable, caravan, clean, cleaning, dodge, edelbrock, iac, linkage, ram, throttle, unclip, wd

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