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Chrysler Pacifica Sticking Throttle

26 messages,  Last post on Jul 23, 2011 at 8:53 PM

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What is this discussion about? Chrysler Pacifica

Messages Page 3 of 3

#17 of 26 Re: cignet [jtg61] by oldsman4

Mar 21, 2010 (8:11 am)

Replying to: jtg61 (Mar 21, 2010 5:05 am)
Way to go! Feels great fixing it yourself doesnt it! There is also a manufacturing issue with these throttle bodies. The plate is designed too tight inside the bore. Being a diagnostic tech myself, after I cleaned it, it only had a little stick when hot. I removed it and found where the throttle plate was scuffing the bore and buffed the bore out with emry cloth. Be careful if you try this-as too much removal will affect the calibration of the housing.(Remember to clean it with T/B cleaner before install after this to get the grit out). After this proedure my pacifica is perfect. BTW- I have an 06 and I use 1/4qt of oil per 3500mi with 65000 on the clock. If you are going thru anything close to a qt per 1Kmi- that is crazy excessive. I call one qt of the correct oil per 2500 being used maxed out. Anything more means there is a problem. I love my Pacifica tho! Hope this helps some of you!

#18 of 26 2006 Chrysler Pacifica Touring Sticking Throttle by woy

Mar 22, 2010 (3:46 pm)

Currently at 60K miles and am now experiencing a sticking throttle when moving from idle or parked position...have to push pretty far to get any movement response..and then car jolts forward or backward depending on if in drive or reverse.

#19 of 26 Re: 2006 Chrysler Pacifica Touring Sticking Throttle [woy] by oldsman4

Mar 22, 2010 (6:58 pm)

Replying to: woy (Mar 22, 2010 3:46 pm)
Yep! You got it. Thats EXACTLY what they do. Clean the throttle body first, then check it for scuffing on the inner wall where the plate closes(at idle position). It has to be real clean and removed from the car to see it. At that spot is where you need to lightly buff the inside of the housing so the plate does not catch(bind) on it anymore. My throttle is now perfect and normal after repairing it. Hope this helps! Sure beats replacing the throttle body. Doesnt matter how much lube you put on the pedal assy- if the T/B is binding at idle this is hot to fix it for good. An 80$ cleaning at a repair shop is a bandaid if there are signs of scuffing on the wall. The problem will come back-just not as bad.

#20 of 26 Pacifica air bag light by hangman131st

Mar 30, 2010 (5:06 pm)

The pacific air bag light comes on to tell you it is turned off. It has a sensor in the seat. If you set an object in the passenger seat that the sensor deems to be a small child it deactivated the air bag not to harm them in a crash.

#21 of 26 Re: Chrysler Pacifica Sticking Throttle [mrrogers] by charger3

Jul 13, 2010 (11:56 am)

Replying to: mrrogers (Sep 29, 2007 6:00 pm)
I have two Pacifics every four months spray some throttle body cleaner about 3 dollars in the opening of the throttle body hold the butterfly open and scrub with tooth brush it will work like new

#22 of 26 Re: Chrysler Pacifica Sticking Throttle by dsmitty541

Aug 10, 2010 (9:35 pm)

Replying to: vic_vinyle (Oct 08, 2007 9:31 am)
dealer was going to charge us min $250 to clean throttle body. how about u?

#23 of 26 Re: Chrysler Pacifica Sticking Throttle [dsmitty541] by oldsman4

Aug 11, 2010 (6:59 am)

Replying to: dsmitty541 (Aug 10, 2010 9:35 pm)
I charge 50$ to clean and CORRECT the problem. Remember, its not only the carbon thats causing the problem- it is actually a machining issue within the throttle bore. If you clean it, sure it will be fine for a few months, but then the problem will be back. See my previous post to actually fix the issue. My Pacifica has been perfect for 2yrs. 250$ sounds like a price quote to do a complete top end intake scrub including a t/b cleaning. Just cleaning the throttle body is a simple procedure, but will not FIX the issue.

#24 of 26 Chrysler Pacifica Sticking Throttle by albanyhiker

Jul 23, 2011 (9:15 am)

I have a similar problem with the sticking throttle that has been occuring for at least 2 years without change. This is a 2004 Pacifica FWD with 75,000 miles. When the engine is off, the gas peddle moves smoothly and easily through the full range of motion. When the engine is running, the peddle resists at first and then releases providing a quick surge in response to steady foot pressure. I'm interested in trying to clean the throttle body assembly. Is there anyplace that I can see a picture of this assembly or will it be obvious when I open the air cleaner?
 
BTW, the engine uses no oil and it appears very clean on the dipstick. I have the oil changed regularly. The only other problem experienced is the Tire Pressure Monitor light. Could be due to a slow leak in one tire.

#25 of 26 Chrysler Pacifica Sticking Throttle - Solved by albanyhiker

Jul 23, 2011 (6:58 pm)

Thanks to all who posted a solution to this problem. I think it is safe to say that lubricating the gas pedal bearing joint will NOT solve the problem. The answer is to buy "Carb and Throttle Body Cleaner" (yes, they make cleaner just for this problem). I bought mine at the local Advantage Auto for 3.99. The hard part is getting the air cleaner off. You should undo the 2 bolts that hold the top on the air cleaner, and loosen the 2 stainless steel clamps that connect the air cleaner to the engine with what I call an "accordion hose"then push it toward the accordion hose (sorry, I don't know what the parts are called). afterward, take off the accordion hose exposing the throttle "blade". A diagram for this is located at "http://www.chryslerforum.com/forum/chrysler-pacifica-15/cleaning-pacificas-thro- ttle-body-4734/". If you try to clean the blade without removing the air cleaner top, you will have trouble reaching into the throttle body. Also, when I removed the air cleaner, I noticed that the air feed at the bottom of the air cleaner was misaligned so that road air was entering directly into the air cleaner. Soooo, I fixed this too. Anyway, I followed the suggestion to use an old tooth brush to scrub and found that it took me about 15 interations of spray, scrub and wipe before the loose gunk stopped appearing. It looked like new when complete. After reassembling the air cleaner and wrestling the hoses back where they belong (hint: attach the engine side first, then the air cleaner side), the engine purrs like a kitten and the throttle is smooth as silk. It took me about an hour, but then my hands are clumsy and I like to take pictures along the way to guide me as I reassemble. You may be able to do it faster.

#26 of 26 Re: Chrysler Pacifica Sticking Throttle [albanyhiker] by oldsman4

Jul 23, 2011 (8:53 pm)

Replying to: albanyhiker (Jul 23, 2011 9:15 am)
Hello, yes it will be plainly obvious when you take the air intake boot off of the throttle body. I highly recc removing the throttle body(its three bolts if I remember correctly) when you clean it. These people that clean it bolted to the intake are not wise... Remember, when you disturb this carbon, with a throttle body solvent, where do you think it is sprayed into? Thats correct- the intake manifold to be sucked into the cylinders when the engine is started. It is called carbon because it is a very hard deposit and it damages the aluminum in the engine when it is disturbed. Do your enigne a favor and remove the t/b and clean it over a bucket with cleaner and a vinyl brush. Then look closely and find the area where the bore is scuffed by the blade. This is actually what is causing the issue in the first place. The carbon build up just makes it worse. Use a piece of fine emry cloth and buff the bore until the blade does not come in contact with it and bind. After you clean it once more, re-install the T/B and you will never have the problem again. I have done a lot of these. A cleaning alone is just a temp fix.

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