OK i AM going to disclose this at MY EXPERIENCE.
My wife drives this JK as her daily driver since I feel its safer for her.
At about 35k she noticed it acted like it was going to die when coming to a stop(The throttle comes back down to idle)
I took it in not knowing what the problem was. Let me explain I am like the writer of this thread, use to older vehicles. Spray some seafoam in the throttle body. However since these vehicle are 'fly by wire' they use a motor to control the butterfly valve on the intake manifold. That scared and me and thus I didn't clean it. DId want to strip out any gears that might be between the electric motor and butterfly valve.
SO the deal called me and says, "Have you clean you throttle body, and I said no" they stated "The back side of the butterfly valve is covers in black stuff(Not sure what everyone wants to call this stuff, -carbon build up , soot)". Which was impeding the air flow when the butterfly valve would return to the 'Idle' position. They said they would have to charge me since this is maintanence and not a warranty issue. I ask if I come there will the mechanic show me, since I am a DIY guy. I arrived, and they did indeed show me and it was INDEED covered with stuff.
Now I know everyone is thinking where is your air filter. I am a thorough guy when it comes to taking care of my vehicle(probably too through). I KEEP my filters clean and tight fitting so as not to let any debri by the filter. Yes its installed correctly as the stealership would of probably got on to me for that too.
So I took it home and just like they showed me. I did the following
1. Disconnect the battery
2. Unplug the harness from the butterfly valve motor.
3. Undo the 4 star bolts from the throttle body.
4. BE gentle with it, as it is an isolated working component extremely important to the function of your vehicle.
5. Flip it over to see the back side of the butterfly valve. Is it dirty? Probably use a cleaner that is a 'di-electric'
I use seafoam airsole can. I then also spray about a 10sec shot in the actual intake all over the inside in fact.
6. Re-install in reverse order.
AGAIN this WAS show and told to me by my dealer.
Dealer is BOB Frensley Madison, TN spoke with the service guy first whose name is Daniel, as for the mechanic I didn't catch his name.
I can do a write up if people feel scared doing this.
I have been doing it EVERY other oil change since they have shown me.
My Jeep runs perfect!! and gets pretty good gas mileage (19ish)
2007 Jeep Wrangler Unlimited Rubicon -JKUR
Rescue Green 6-Spd, 33" KM2s- 17 x 8 BlackRock Series 909 wheels, Stainless Steel Gibson Exhaust & AFE Air Intake, Superchips, Aberle Front Bumper&10.5K Winch, PiAA ATP Lights
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