SOURCE: Rough Idle 2000 ford Taurus OHV
This could be a bad a/c compressor or compressor pulley bearing.Try removing the serpentine belt and turning the compressor by itself.The bearing should turn very easily,and the compressor itself should turn.If it is vety hard to turn,it is bad.
SOURCE: 91 Taurus idles @ 2000 to 2300 RPM's Have checked
try cleaning the air bypass solenoid at the throttle body,holds on with 2 bolts and is long and round with a wire plugged in at the end.its probably carboned up and sticking open
Testimonial: "Thank you for your responce. The problem was the Idle Air control valve. The diaphragm was torn. "
SOURCE: 1987 F150 302. No trouble codes but engine idles too fast
The IAC (idle air control) may be stuck from dirt or malfunctioning.It's located in the intake near the throttle body.Remove it clean with carb cleaner and reinstall
Testimonial: "Thank you for response. Actually had IAC off and was clean inside. Resistance within range 9 ohms but voltage signal at 12.5 V rather than 10.5 V"
SOURCE: 92 Ford F150 4.9L. starts good, idles rough, dies at slow speeds
4.9 litre ?? you having a laugh its a 10ton truck engine not a pick up -global warming machine,remove the pump/sender unit and check the gauze filter also look inside tank for a something floating around ,i think the idles is not a related problem to the vehicle losing power but their is a possibility you could have a problem with the little vac operated thing on the fuel injector line that allows the fuel through only when the engine is running
SOURCE: already replaced iac and all vacum lines when i
Need more info - is it just in the morning? Takes long to crank? Idles rough???
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