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Steve S
Steve S, Ford Technician
Category: Ford
Satisfied Customers: 1866
Experience:  10 years in Ford Dealership, Certified in: Auto Trans, Diesel Engines, Climate Control, Electrical D
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6.0 powerstroke code po402 exaust gas recirculation flow excessive

Resolved Question:

6.0 powerstroke code po402 exaust gas recirculation flow excessive detected engine mises and no power
Submitted: 8 years ago.
Category: Ford
Expert:  Steve S replied 8 years ago.
Hi thereCustomer The most likely cause of this is the EGR valve itself. This valve gets all carboned up and then it sticks, then this is the cause of the low power. It is basically an air leak in the manifold if it sticks open. Were there any actual codes for a misfire also? Steve
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