How to adjust idling on a mountanieer

A Mountaineer is not a van--it is an SUV

You go to a dealer-- to ask about recalls

I doubt there is any recall & the transmission is
almost 9 years old & about done

Time for a rebuild

$3,500.00 at a trans shop-- will get your going again

Start changing all your vehicles trans & power steering
fluids every 3 years

Could be the idle controll sensor. But your on the right track. Clean the throttle body and map or maf sensor with the correct cleaner's. Get it at the parts store.could also be the pcv valve is carboned up.

The issue is most likely the setting at which you idle throttle is set at. When you come to a stop, your brake system takes power, and if the idle speed is too low, then the call for power will stall the engine. To fix this, look for where the throttle cable connects to the throttle body. Where it connects will be a screw that you can turn that will change the angle of the throttle plane. This is called a set screw, so be sure you are not turning a screw that holds the throttle assembly together. The screw most likely has a spring in between the head of the screw and the throttle plane. To adjust this properly, turn the engine on with the hood open. Keep the engine on and adjust the screw left or right until the RPM indicator points right above 1000 RPM. A good idle speed for a SUV is 1200 RPM.

Vacuum leak or bad oxygen sensors can cause rough idle.

Your SUV has electronic fuel injection. As such, your idle setting is controlled by a computer (ECM) and cannot be adjusted in the manner I believe you seek. If you have an idle issue, there is most likely something else that needs attention in the system. Coudl be from a senicor being dirty as well, loosing contact...I hope this is of some help I know it is not what you wanted to here. Good luck any more questions just ask if i dont know the answer someone in here will

Try turning your air system off and jack up the SUV. move the control arms around, then up and down the best you can. Let the SUV down on the ground, take a look to see how level the SUV sits . It should reset itself when you turn back on the air supply system. If not, you may have punctured or damaged one or both of the airbags if you lifted the SUV without turning the air off first. You may get lucky, but remember to shut off air supply if you have bags for suspension in the furture.

mcdevito75 here, It could be 1 of the idle sensors, have your local repair shop check it out.

check your IAC or stepper motor operation run the vehicle with the AC on and see if its makes a difference

TRANSMISSION FLUID AND TRANSFER CASE FLUIDS ARE SUPPOSED TO BE CHANGED EVERY 60,000 MILES. ENGINE OIL AND FILTER SHOULD BE CHANGED EVERY 3,000 MILES, THESE ARE AUTOMOTIVE INDUSTRY STANDARDS I HAVE WORKED WITH FOR 35 YEARS

the computer might have set up to a bad mix from the fuel additive or could have damaged the ox sensor .remove the battery terminal for 5 min replace and see what happens , worth a shot before you spend out money