2000 explorer cold idle problems

[bsylvester]

I am having a idle problem when the truck is cold. Had a tune up and replaced the wires. Have changes the IAC valve as well. after the car warms up the truck idles fine.

[srercrcr]

Possibly Cold Start Sensor. I would start by cleaning both sides of the throttle plate with carb cleaner.

[oliver88]

Our 2000 explorer has the same problem. I took the throttle body off and cleaned it. That did not fix the problem. There is a sensor in the intake tube. could that be sending the wrong temperature to the computer? Also where is the cold start sensor?

[buzzsaw28]

Might also want to do an internet search on 00m12 + ford and see if that sounds familiar. It is a recall that Ford will fix for free if your mileage is low enough. I had this done and it fixed my idle problem. I had tried everything else to no avail.

[floundergigging]

My wife's exploder was running rough and stalling at idle only on the cold mornings. Approx 50 degrees and colder. It is a 1999 ford exploder xlt sohc v6. I replaced the o-rings on the intake manifold and it fixed the problem. I have had the problem for approx 2 years. A few times toward the end I would get a check engine light and finally the light just stayed on. The code was lean bank 1 and lean bank 2. I changed out the idle air control valve and it did not help at all. That was when I decided to change the intake o-rings and it fixed the problem. I did the job myself and it took approx 3 hours. The o-rings were blue in color and were not pliable. They were real stiff but would bend. The replacement o-rings were from felpro and they were silicone o-rings and were very pliable. Just get a book and some tools and you can do the job yourself. Good luck, Brian

[buzzsaw28]

The 00m12 recall is good for 6 years/72000 miles in case you're in that group. It's a free fix if you fall into that category but you have to ask them for it. My dealer charged a fee to check and when it turned out to be the problem they refunded the diagnostic.