4.7L throttle body cleaning ??? - DodgeForum.com


1st Gen Durango 1998 - 2003 Durango's

4.7L throttle body cleaning ???

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Old 12-29-2010, 12:06 AM
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Default 4.7L throttle body cleaning ???

I was going to clean my throttle body but when I got it all apart to clean, I couldn't get the plunger looking sensor out. Not sure of which sensor it is. It has only 1 screw holding it in. I tried to pry it but it seemed to be stuck and I didn't want to force it. TPS came out easily.




And I wasn't sure if this is the MAF sensor

Thanks for the help

Last edited by Dans01Durango; 12-29-2010 at 09:38 AM. Reason: Fixed the pics for ya.
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Old 12-29-2010, 08:10 AM
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Not very experienced with the 4.7 but I would say yes that is the MAF sensor. Also that plunger sensor is your IAC sensor which controls how much air is allowed in the mixture during idle. Be very gentle with this or you will break it and required to replace this. I recommend sticking the tb cleaner straw down the IAC port and give it a blast to try and loosen the gunk. Wiggle it out as gently as you can and it should come out.
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Old 12-29-2010, 03:36 PM
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That looks like the IAC. Here are instructions for cleaning the 4.7L Throttle Body: http://www.craigcentral.com/durango/tb.pdf


You should do a full reset of the PCM after: http://dodgeforum.com/forum/1st-gen-...ine-light.html

Last edited by hydrashocker; 12-29-2010 at 04:28 PM.
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Old 12-29-2010, 06:04 PM
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whitewidow, I will try that. I got some MAF cleaner at auto zone yesterday that is safe to use on plastic.

hydra, thanks for the link. That's exactly what I needed. You should put that in the sticky thread for the DIY so others with this throttle body style won't be wondering how to do it if they can't figure it out.

Thanks for the help guys
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Old 12-31-2010, 12:24 AM
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Working on it! I can't access my DIY section without the help of a moderator. PM was sent.
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Old 01-01-2011, 03:32 AM
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White,I did what you recommended and with a little finesse, the IAC came out and it was black as was the hole it was in. After I got it all put back together and reset the PCM, it ran like new again! I took it for a ride and it seems much more responsive when I gas the throttle!
The IAC before and after


And And the throttle body, before and after
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Old 01-01-2011, 02:44 PM
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Much better isn't it......LMAO


That thing was really dirty! You'll feel that awesomeness especially off the line like you say. You should also feel a smother idle and see a little better fuel mileage.
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