The problem is caused by the calibration of the idle air control valve and evaporative emissions system. The stalling typically occurs while decelerating at speeds below 40 miles per hour. What causes intermittent stalling on a Ford Escape?įord has also issued a recall (04S13) for 2001-2003 Ford Escape sport utility vehicles with 3.0L V6 engines for an intermittent stalling problem. I ended up rounding off the nut to it and ended up calling it a. Last week I decided to try and check the Egr valve for carbon build up, and Couldnt get the EGR to exhaust manifold tube loose. A lean condition is when there is too much air relative to fuel in the air fuel mixture. 1997 - 2003 Ford F150 - Check engine light on with P0171 and P0174 codes - My 97 F150 4.6 v8 has been running rough lately. The exhaust color is usually darker when running rich. A rich condition is when there is not enough air relative to the fuel in the air/fuel mixture. Idle Issues– Your F150 may run rich or lean when idling, or it may also idle erratically. What causes a Ford F150 to run lean or rich? Here are some of the more common causes of an engine timing problem: VVT Problem – Many modern engines are equipped with Variable Valve Timing. If your Ford F150’s engine timing is off, it’s going to stall out, misfire, and altogether not run properly.
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