Quote:
Originally Posted by DipakG
So I'm wondering: is the stalling related to these error codes, or a different issue altogether? All input sincerely appreciated. Thanks!
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Yes, it does. A too lean mixture can cause an unstable idling (500-700rpm), and may cause the van to stall.
I had a vacuum leak in a Windstar 99. When I turn on the A/C at idle, engine oscillate between 500 and 700 rpm. 500rpm is the limit before stalling, so it's possible to stall.
Do the vacuum test to see if it's the real cause of your stalling, it may be something else.
But you should also repair your vacuum leak. If not, engine may break. I suggest you to bring it in a Ford Dealership, not to a standard shop. But if you are very good in mechanic, you can replace the intake port gasket. This Website will help you:
http://www.leckemby.net/windstar/windstar01.html