I have a 1997 ford experdtison have a code p0402

Asked by Jan 01, 2017 at 10:31 PM about the 1997 Ford Expedition 4 Dr XLT 4WD SUV

Question type: General

My check engine light is on

3 Answers

17,995

Hello I am putting a URL below that you need to read the whole page concerning this code. It goes into detail and will help you out. Just copy & paste it to a new window browser and hit enter.

2 of 2 people found this helpful.
17,995

http://repairpal.com/OBD-II-Code-P0402-Ford

2 of 2 people found this helpful.
12,825

Check the E valve and circuit.

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