I have a 2005 altima 4 cyl., when starting it has a rough idle so i sprayed throttle body cleaner in the throttle and wiped it clean then started the car and sprayed some more throttle body cleaner into the throttle as we gave it gas opening the butterfly keeping the rpms reved for a moment. know while in park it idles between 1 and 2 1/2 rpms constantly meening up and down as if it was having prolems getting gas any suggestions?

I typically remove them to clean but they can be cleaned on the car. Get throttle body cleaner from the store and spray all over. Manually open the butterfly valve and wipe after. I would take the idle air control vavle off to clean it.

The envoy was notorious for this. Especially after a battery disconnect. I'm going to step out on a limb and assume your Envoy has the 4.2 liter inline 6 cylinder engine. You can fix this all by yourself if you are handy with a screwdriver and throttle body spray cleaner. Go down to your local auto parts store, and get yourself a can of throttle body/intake spray cleaner.
Pop the hood on your Envoy, and unscrew the big black accordion-looking tube attached at your engine with the screwdriver. This tube runs across the top of the engine from the air filter on the right side fender under the hood. Pull the accordion tube off of the throttle body. The throttle body is what you will clean out with your can of throttle body cleaner.
The throttle body has a large, round brass-colored plate inside of it. This is what lets the air into the engine, and is what is causing your engine to stall with the A/C on. It also has a black electrical connector on the top of it with about 6 wires going into it.
Back to the repair. Once you get the air intake accordion boot off the throttle body, and can see the brass-colored throttle valve, grab your can of throttle body cleaner and a *clean* rag you won't mind getting dirty. Spray some throttle body cleaner on the rag. If you have skin sensitivity to chemicals, you may want to wear gloves. With your rag in hand, push open the throttle valve. Be VERY, VERY, VERY careful NOT to drop anything inside the opening!
You will see black carbon-like substance around the inside diameter of the opening. Use your throttle body cleaner soaked rag to clean all of this black stuff off until you can see shiny metal beneath it again. Do this on the bottom and top and sides of the valve. This stuff is causing the valve to stick and sort of choke off air flow to the engine when the A/C is on. Cleaning all of it off will restore your engine's idle speed to normal.
You can spray the throttle cleaner inside the throttle body, but a rag helps to clean it off. Also note, that depending on how much you spray into the throttle body, the engine may have a rough start initially and idle pretty rough until it clears the spray out of the system. Put it all back together and tighten up the accordion boot on the throttle body and you're done!

Rough Idle covers several symptoms. Do you mean Idle (RPM) goes up and down or do you mean it is too low and car tries to stall? Idle is dependent on fuel delivery and spark Depending on your mileage and driving style it is more likely an Idle Air Control valve, Mass Airflow Sensor or Throttle body. I would purchase CRC MAF Cleaner and CRC Throttle Body cleaner. you will need to disconnect the induction hose from the air filter and throttle body. On the Taurus/Sable the air filter is loated on driver side under hood. Trace back from it and mid way youwill find a plastic cylinder that is wired in with a plug. Unplug the MAF. Make sure and notate which side is facing the engine as the air flow has to be the right way. I put a dot on the side that should face inward to remember the flow direction. Find a ventilated area and take the CRC MAF cleaner and spray the inside of the Mass airflow from about an inch away. Be careful there are very fine wires inside that can be broken by the nozzle by touching or being too close when spraying. Spray liberally and then set aside to dry. Continuing up the intake you will find the throttle body whihc is a cirucular intake that is metalic It has a butterfly valve inside. Use the same CRC brand but this time us CRC Throttle body cleaner. DONT USE CARB CLEANER OR OTHER BRAND. Ford coats their Throttle bodies with teflon and any other brand can eat this lining away. Clean in short bursts. You can gently take a clean shop rag to wipe inside with your finger as sprayed to dislodge some of the dirt, but be gentle. Dont use stiff brushes.. A qtip, a soft bristle tooth brush with very light pressure. as well. Clean it very well. Place rag underneath to catch any run off. After its cleaned and teh MAF is cleaned, replace the air filter and reassemble the unit. The car will be hard to start at first. Turn it over a few times and it will start. It will sputter a bit and then should run better. Start with MAF and Throttle body first. then move to plugs..Finally, the MAF and Throttle body should be cleaned every other oil change.

Rough Idle covers several symptoms. Do you mean Idle (RPM) goes up and down or do you mean it is too low and car tries to stall? Idle is dependent on fuel delivery and spark Depending on your mileage and driving style it is more likely an Idle Air Control valve, Mass Airflow Sensor or Throttle body. I would purchase CRC MAF Cleaner and CRC Throttle Body cleaner. you will need to disconnect the induction hose from the air filter and throttle body. On the Taurus/Sable the air filter is loated on driver side under hood. Trace back from it and mid way youwill find a plastic cylinder that is wired in with a plug. Unplug the MAF. Make sure and notate which side is facing the engine as the air flow has to be the right way. I put a dot on the side that should face inward to remember the flow direction. Find a ventilated area and take the CRC MAF cleaner and spray the inside of the Mass airflow from about an inch away. Be careful there are very fine wires inside that can be broken by the nozzle by touching or being too close when spraying. Spray liberally and then set aside to dry. Continuing up the intake you will find the throttle body whihc is a cirucular intake that is metalic It has a butterfly valve inside. Use the same CRC brand but this time us CRC Throttle body cleaner. DONT USE CARB CLEANER OR OTHER BRAND. Ford coats their Throttle bodies with teflon and any other brand can eat this lining away. Clean in short bursts. You can gently take a clean shop rag to wipe inside with your finger as sprayed to dislodge some of the dirt, but be gentle. Dont use stiff brushes.. A qtip, a soft bristle tooth brush with very light pressure. as well. Clean it very well. Place rag underneath to catch any run off. After its cleaned and teh MAF is cleaned, replace the air filter and reassemble the unit. The car will be hard to start at first. Turn it over a few times and it will start. It will sputter a bit and then should run better. Start with MAF and Throttle body first. then move to plugs..Finally, the MAF and Throttle body should be cleaned every other oil change.

It's flooded. After it runs awhile it should come out of it. Take it for a drive

the throttle body air valve or throttle valve needs cleaning.it has a little carbon build up.it will cause it to idle high.get gum out throttle body cleaner. remove all electrical components.also all plastic and rubber parts the gum out cleaner will destroy it. also replace throttle body gasket.

do you have a check engine light on? if not try cleaning the throttle body follow the tube from the air cleaner box to the throttle take hose off open throttle plate and clean with carb cleaner and a tooth brush and a rag car will run rough after you do this may have to hold throttle open to start

To clean the throttle body disconnect the air tube running form the air box to throttle body and use Carbon cleaner. Read direction on can. Also clean EGR valve since this does control idle if it is carbon up it will cause the small valve on the inside to stick open causing rough idle and or stalling out at idle use the same cleaner.

1) remove the black intake hose from the throttle body
2) get a can of throttle body/intake cleaner
3) be VERY careful if you decide to use the straw included with the can of cleaner, it can detach and go inside of your intake manifold.
4) spray inside and use a rag to remove junk from throttle plate(front and back side), hold the straw on the cleaner can and spray into the hole just ahead of the throttle plate, let soak for 10 minutes or so
5) reattach intake hose and start engine - you may get black smoke/rough idle for a minute as junk exits the engine

I have been having this problem, first definitely check out the throttle body to see if its gummed up and you can try to clean that by spraying carb cleaner into it, check all your filters, check the idle air control valve and spray with carb cleaner but not onto any electrical connectors, crank the car and if it doesn't start then give it a bit of gas while cranking and it will idle rough and it will smoke a bit to burn off the cleaner, and hold rpms until it the idle smooths out, if that doesnt work then maybe a mechanic?