HELP HELP HELP! Engine almost stalling, low RPMS!

This Jeep is a real pain sometimes! One problem after another!

At times the engine idles low. Some times it feels like its gonna stall out when I put it in park, and the RPM dropped real low last night when I was backing up into my drive way. A while back when I parked at a resturant it stalled out as soon as I put it in Park. Also, when starting it at times it smells like it was running rich or something. You can defiantly get a slight smell of gas. I'm not sure what it is.

Thanks for your help!

Any CEL's or anything?

CELS mean the codes it throws, correct? Sorry, I'm a bit of a newbie. It has two codes, but they're unrelated, and actually the light goes on and off at random intervals because of them. They refer to the transfer case sensor that needs to be replaced, and the radiator replay as well. Both getting done this weekend.

Has it been maintained? Good spark plugs, etc?

I really don't know what it could be - stalling could be a ton of different problems.

I just got it about 6 months ago, but I've changed the plugs and oil.

The IAC controls rpm. They get seriously carboned up. Drivers side of Throttle body.
Remove it and give it a good cleaning and the port with throttle body cleaner spray and see if that is better, if not replace it.
Also spray out the throttle body, and check your air filter.
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One - T-20 Torx bit on bottom (behind hose) remove it...
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X2 on what LibertyTC said.....

LibertyTC said:

The IAC controls rpm. They get seriously carboned up. Drivers side of Throttle body.
Remove it and give it a good cleaning and the port with throttle body cleaner spray and see if that is better, if not replace it.
Also spray out the throttle body, and check your air filter.
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One - T-20 Torx bit on bottom (behind hose) remove it...
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You sir, are a god! Thank you so much!!!!!

Thanks Tim .. I was going to hit you up for directions on this last week.

Bookmarked, pending warmer weather.

Yes bookmarked as well.
1 question.
should you or should you not use carb cleaner and instead use throttle body cleaner.

I think I've asked this before, but can't remember the answer..:freak3:

I have both the throttle body cleaner and Carb Cleaner.
The throttle body cleaner should be used as an intake cleaner as is safe for injectors/cats.
Ok so why in the photo did I mention Carb cleaner? Simply it works better, is stronger, and in the case where you have removed the IAC and are only using Q-tips and lint free shop towels to clean the port, the carb cleaner removes the carbon better.
Some compressed air (even in a computer dust off spray can) helps to blow out the small particles and should be used after cleaning as well. Hope that helps.
And Edit: One Last comment on the plunger on the IAC, When you depress the plunger, the Q-tip should bend a bit and there should be reasonable resistance as you depress it.
If it slides down like the spring does not exist, replace the IAC. A sign that the plunger is worn out is : a hesitating idle like sticking at 850rpm and then dropping to 650 to idle normal as example.
ALSO since you are there and cleaning take the time to also remove your PCV valve! Clean it too and if it does not rattle..buy a new one!!!
And last hint for removing hoses..use a hair dryer to heat them up before removing and installing.

Thanks to the OP, just did this tonight .