air bypass vavle


Old 10-02-03, 06:18 PM
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Unhappy air bypass vavle

hi, I have a 1989 ford 150 pickup with a 4.9L EFI.when I try to start it cold it starts and then dies.It well do this for two or three times untill it idles rough and then smooths out and runs fine.I was told that it was my air bypass vavle.Does any one know how to check it and if so what do I have to do?I call auto parts and they are not cheap.hope someone can help me with this problem.Thank You
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Old 10-02-03, 10:19 PM
Join Date: Dec 2001
Posts: 2,538
try reading the wont start cold post below this one and start there.

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