idle problems

I have a 94 Explorer with 4.0 ohv non egr 5 speed standard I rebuilt a year ago. Every sensor is bran new. A month ago I started experiencing difficult starts and high idles. When the truck is cold I can start it and it will take at least 45 seconds of the engine trying to stall before it...

A few days ago, the RPMs on my 2003 Explorer with the 4.6 started jumping up and down at a cold engine start. The RPMs will continue to jump for 5+ minutes. If you put the vehicle in drive or reverse during this, it will lunge forward (or backward) as the RPMs jump. The RPMs will stop jumping...

I have a 2003 Explorer with the 4.6 and 135k. About 3 months ago, while the Ex was traveling between 45-55mph, it would feel like the trans was slipping in and out of gear. I had my mechanic look at it and he replaced a coil pack and spark plugs and this fixed that issue. A week later, while...

I have a 97 ford explorer and I have an idle problem and I can't figure it out. It will start and run fine but if you put it in reverse the RPMs drop to 500 and if you tap the gas it drops more and spits and dies.... I have tried to adjust the idle and nothing... need some help and thing is...

I have a 2006 ford explorer V6 Eddie Bauer I'm having some idling issues. When I go to start it up it seems like its having a hard time to start runnin. The rpms will go up past 1000 after start up and drop down between 250 and 500 and go back and forth until finally idling down to 500 which is...

Hi I have a 2002 Sports Trac with a Idle problem. When at Idle the truck seems to drop rpm's and sort of stutter for a second and then pick back up. I have replaced the spark plugs,air filter,Idle control valve, the rubber l rube that loops from the front of the engine to the back(sorry I forgot...

I suspect that my 02 sensors may not be working. I cleaned my IAC valve a few months back and I used RTV silicone gasket maker...yeah, I read a thread on here that said silicone is really bad for the 02 sensors. I don't have a very good idle at the moment, not bad just not right. I've already...

Hey guys, so I have a 2006 Explorer 4.0 and lately it has been idling around 1700 rpm after a cold start. The revs go back down after driving for a little bit, but the car still idles rough. Also whenever the engine is revved and is going back to idle you can hear a slight popping noise. It is...

hey guys my 02 mountaineer 4.6 has an idle issue. i just replaced my TPS and it still idles high around 1500-2500 rpm...mostly 2500 rpm. strange thing is that i took off my new TPS while the engine was still running, and left it plugged in...just took the mounting bolts off and took it off the...

Welp dont know where to start...got this car for basically nothing because of all of the problems. where to start welp its a 2002 mountaineer 4.6 and you go to crank it up...if it decides to and it basically idles at 2-3 grand. you mash the gas and it revs back down really slow. Also the o/d...

In my 1993 Ford Explorer I noticed this over the summer last year, and it went away during the winter. Now that it's above freezing it does it again. In idle it will rev from under 1000 rpms to about 1500-2000 every 10 seconds or so. When I looked underneath the hood the one main belt you can...

my explorer takes a while to turn on. Like I'll turn the key and it'll crank like 3 seconds then turn on. It never used to do that, and when it does turn on I try to give it gas and it does nothing at all. I can put the pedal to the medal and nothin! Also there is a tool lookin sign that lights...

Hello, I just bought a Explorer XLT 94 it idled weird when driving in general so i started running diags. on it and i went and replaced the air filter and fuel filter and also the cap and wires and plugs now idk what to do next it is running alot smoother but it still bogs down when i am...

I have a stock 95 explorer with id say about 250,000 miles on it. my problem is when the truck has been parked and i go to start it i have to keep my foot on the gas to keep it running, i dont have to pump the gas or floor it, just enough to keep it at an idle. After i get in and take it down...

Hey guys, for the past year my 1995 (OHV) ex has intermittently stalled at idle, has a rough idle. Recently its gotten worse, if I give it gas while idling it won't stall. Also while driving at mid to higher speeds the ex randomly feels like its losing power or the transmission is...

91 explorer eb edition, it was running allright till a week or so ago, when i would be at a stoplight it would be fine at first, then the idle would go down to 900 rpms and it would shake and act like it was gonna stall, the voltage meeter also goes way down, lights dim and whatnot, it drives...

Hi everyone I just got a ('93) Navajo. Been running great, it's a stick 2 wheel. I've ran into a problem. I've noticed while driving the car seems to stall on acceleration. And at lower speeds it bucks. Also sometimes while at idle it stalls. I have seen the battery needle drop while it's trying...

Hello to all. Excellent site. Just joined and looking for some expertise. I have a 1999 Explorer Sport, 4.0 SOHC. For about 4-5 years now when it gets roughly 45 degrees or lower (the lower the worse) upon starting the engine fires up fast and high idle then drops down to 500 or less rpms and...

okay here is the low down... i had 2 plug wires melt on my valve cover while traveling on the thruway.... obviously caused some problems.... fixed that(new plugs and wires) but now it will not idle for the life of it when its warm.... its standard, 4.0 OHV. i have no clue whats up.... i checked...

i own a 2003 ford explorer w/4.0.i did an upgrade on my exhaust system and then shortly after installed a K&N cold air intake. And now my engine runs erratic in idle and sometimes even stalls (shuts off) on slow down ( coming to red lights,stop signs,etc. ) There were no problems after changing...

My explorer runs fine, no known issues except one that has been bothering us since the day we bought it (used). At idle it vibrates terribly. Loud, clankinging, and vibrating and it resonates through the entire car. I can't seem to find a thread that covers this issue, but I would love to...