My focus idles rough at times and when it does the battery light flashes, P01710 code (i think) says bank 1 running lean. Also after about 30 mins of driving around and i stop at a red light or stop sign and go to accelerate it will get shaky and slowly gain speed and then around 35-40mph it will stop accelerating and starts to shake front to back slightly, engine revs but doesnt go faster. When i stop for a few minutes to shut off my engine and start back up it accelerate fine again. also there is a coolant leak that is coming down the front of the tranny and i cant figure out where its coming from (mechanic says i need to take out the tranny to get to the leak but im trying not to do that). Can anyone help shed some light, is my tranny done? diagram of coolant lines? should i replace the sensors? thank you
Rough Running Engine - James on Engines #2 - Bell Performance
https://www.bellperformance.com/blog/rough-running-engine
Apr 21, 2015 - When diagnosing an engine with a rough idle, there are certain things that must be ... If the problem does not reoccur, the codes will be erased by the computer. ... when accelerating the vehicle, which causes a higher fuel demand. .... it was water in gas...added added Gas LineAntifreeze/Water Remover.
SOURCE: engine runs rough at certain speeds 3.0 v6 flex-fuel 1999 ranger
Check and see if the EGR valve is leaking, to check this spray water on it at idle, if the water steams off the valve is leaking and is the source of your problem, also are you sure you hooked the new DPFE sensor up right? re-check it..
SOURCE: hesitates/stalls during acceleration
i would check fuel supply, volume adn pressure, i wold also look at the MAF sensor hot wire to see if it has a little chia pet growing on it.
SOURCE: Check engine light comes on. p0171 and p0351 codes found
From Lusty Kid:
I know the economy is bad, but change all of the plugs. Check your PCV Valve hose, 150 rottens them out allowing air to be sucked in, thus all kinds of codes.
Depending on mileage. Dismount the EGR valve and clean passages. If you are really good dismount the throtle position sensor body and clean out passages with Choke Cleaner., dismount where the EGR valves connects to the engine, clean out passages. Also check the hose thats behind this mounting to ensure is not clogged. If clogged clean it out. If not replace it. Is about 1.5 ft. long, connects to the PCV Valve Hose.
When is the last time you change your harness. Can't remember??? Replace it. Good Luck
SOURCE: 97 Ford Ranger 4.0L V6 Idles rough only when cold
Orand
Ther is a air Idle control valve located on the side of the throttle body. unplug it remove it spray it and clean it with carb cleaner replace it plug it back in and you will be a Happy person again.
Lugnut61
SOURCE: 2003 Ford Taurus stalls at idle
go to autozone.com and register for free. You will then have a full free online repair manual with step-by-step directions, diagrams, troubleshooting, testing, replacing, and more. As an automechanic myself, this a wonderful site.
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