Question about 1997 Ford Expedition

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I have a 2003 ford expedition with a 4.6l in it. The service engine soon light came on the other day I took it to auto zone they said it was to lean they said mass air flow sensor. Every once in a while it idles rough and my wife said today it started stalling at stops. Any ideas would be greatly appreciated.

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If the mass air flow sensor is not working it will not get the correct air fuel mixtre in the engine and it will stall, sputter, miss and die. This needs replaced by the symptons your describing. You can replace this youself. It is in the air intake system. When you buy a new one you will be able to see the old one and replace it.

Posted on Mar 15, 2011

Take it to a repair shop, if you don't
know the technology

I apologize for a blut answer, I just
don't want you installing parts to no
avail.

You need alot of knowledge to work on
todays vehicles, and it is a diagnostic or
testing solution,not a guessing game

Posted on Mar 15, 2011

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http://www.ford.com/owner-services/customer-support/ask-ford-faqs?qtype=uq&inputtext=check+engine+zone

http://www.motorcraftservice.com/pubs/content/~WO3EXD/~MUS~LEN/41/03exdog5e.pdf

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