Questions & Answers for: idle 4 liter engine

...the engine is lagging, idle speed has dropped to around 500rpm. The O2 sensor seems to be holding pretty steady around .4 to.5 regardless of rpm. Service engine light is on and no codes are

gallon. Put 3/4 of that amount in , start the car and idle for a minute , then turn the car off. give it a few minutes to drain from the top of the engine then check the dipstick to see if you are low

...rag. You may want to also take the idle air control valve off and clean the passages there too. This picture is for the 2.4 liter engine, but the 3 liter is similar. Let me know if you have

4.0 liter motor will not idle below 24500 rpm. 1994 aerostar, 4 liter motor, auto i hope that the 24,500 RPM is a miss-print and you mean 2450 RPM. get a can of carburetor cleaner and spray around the

...4 cylinder. ONLY WHEN CAR IS HOT, idle drops off, engine stalls, must step on accelerator to keep from stalling. Otherwise, idles normally. New spark plugs, new battery. Likely cause? Some "check ...

idle stablizer,gounds good,battery,cold start valve,coolant temp sensor,ECU,once car warm i can put gas to floor no issues whatsoever drives and runs perfect until it get cold again, spent 4 months in

...idle back down. What's problem? 4.3 liter engine, 4 speed auto transmission. Acts like the cruise control is set. Braking (hard) will bring engine back to idle. Bad sensor? Vacuum hose? In most ...

...4 liter 6 cyl & it I have a 1999 jeep Cherokee 4 liter 6 cyl & it sputters & won't accelerate when driving & if u push the pedal all the way down it will kick & shoot off & ...

idle air passage . The IAC motor or valve is on the throttle body, with a 4 wire connector. Take it off and look for carbon or coking deposits around the valve's pintle, and in the air passage beneath

IDLE CONTROL VALVE Possible bad coolant temp sensor. the 4 liter , I-6 cylinder engine, do you know whats there,? we dont. all I6 love to do that, 1: the ISC stepper motor air cone is stuck, I cleaned