oil pump on 2002 Ford Expedition

I have a 2002 XLT 46 Expedition. I was driving in cold weather on 1/2/09 and have 115K on the engine. I was at 65MPH and the oil gauge started moving from high to low quickly and then the engine shut down with engine light on. I have changed the battery, the cable wire and posts. The engine starts now, but again loses oil pressure after 10 mins. Is this a sending problem (electronic), oil pump go out (no oil spilling out). Any input would be appreciated. Thanks

by in Mesa, AZ on January 25, 2009
1 answer 2 comments
ANSWER by on January 26, 2009
There's a oil pressure sending unit located behind the oil filter cost is about 10 to 20 dollars
COMMENT by on January 26, 2009
Thanks for your response!
COMMENT by on December 04, 2010
is there a way to test unit
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