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Hissing noise when accelerating then dies out

il66pony

Active Member
Joined
October 8, 2015
Messages
59
Reaction score
9
City, State
Hawthorn Woods, Illinois
Year, Model & Trim Level
2007 Mountaineer
Thanks for the info. Actually, after I posted yesterday, I did buy the Motorcraft check valve off Amazon. $8.00 and will be here Sunday.
Thanks all for your help. Got the part yesterday. Old check valve was basically a two-way connector. Easiest thing I have done to a modern car since back in the day when 60's cars were "modern."
 




Gmctyphoon

Well-Known Member
Joined
July 4, 2020
Messages
126
Reaction score
28
City, State
PA
Year, Model & Trim Level
2002 Explorer 4.6
Thanks all for your help. Got the part yesterday. Old check valve was basically a two-way connector. Easiest thing I have done to a modern car since back in the day when 60's cars were "modern."

So, all fixed with the check valve?
 












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