96 FORD RANGER STUMBLES ON ACC PO401 IS THE ONLY CODE FUEL PUMP 35-40 PSI 2.3 4 CYL

Asked by Feb 19, 2009 at 06:44 PM about the 1996 Ford Ranger STX Standard Cab 4WD LB

Question type: Maintenance & Repair

REPLACED EGR CODE BACK PROBABLY DPFE WANT TO FIX DRIVABILITY ISSUE FIRST THOUGH
CHECKED FUEL FILTER IS GOOD REPLACED ALL 8 PLUGS FEELS LIKE ITS RUNNING OUT OF FUEL WHEN IT STUMBLES I WISH TERE WAS MORE CODES BUT P0401 IS THE ONLY ONE

1 Answer

1,225

You should make sure the air filter is good , the throttle body is clean ( throttle plate and bore are not "gunked up") Make sure you have no vacume leaks in the upper intake plenum , and from the air flow meter to the throttle body . An air flow meter that is faulty , or dirty will cause hesitation problems too. A low flow EGR code normally means the flow sensor is faulty, or the lines from the EGR tube to flow sensor are plugged, or leaking. I kinda doubt the EGR would cause your problem. Usually a stuck closed EGR will not affect drivability, just emissions . Astuck open EGR would cause very rough running and possibly stalling .

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