1999 Ford Windstar Morning Stall

FORD WINDSTAR
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DENECE
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  • 1 POST
My 1999 Ford windstar with 99,300 miles has the check engine light on and has been stalling in the mornings when I come to my first stop sign. After it has been driving a little longer it doesn't stall the rest of the day. I have had the car in to figure out the check engine light 4 times. They have replaced the 02 sensors and most everything else related to the code that came up. Still the light is on. I am wondering if the stalling is related to why the light is on? Or what I should ask them to check to stop the stalling? I am under warranty for only 800 more miles and need to figure this out fast! Thank you
The codes that came up werePO171 P1246
Dec 19, 2006 at 4:42 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
P0171 is system lean bank 1. I would check for vacuum leaks and if there are none replace the Mass Airflow Sensor.
P1246 is Generator/regulator system. Have the alt checked to be sure its working within spec.Also have the battery load tested.

Hurry before your warranty is up, and make them fix it
Dec 19, 2006 at 7:14 AM

Suggested Repair

Check for vacuum leaks and replace the mass airflow sensor if none are found. Have the alternator tested to confirm it is within specification and load-test the battery.

Conversation Summary

The owner of a 1999 Ford Windstar reports morning stalling at the first stop and a persistent check engine light after oxygen sensors and related parts were replaced. Codes are P0171 and P1246. The expert advises checking for vacuum leaks and replacing the MAF sensor if none are found, plus testing the alternator and battery before warranty coverage ends.

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