Got Codes P0353,P0356 after changing spark plugs I have rechecked everything

What is your question?

I have checked connectors and coils also spark plugs What else can I do

May 17, 2013

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RepairPal Certified shops can diagnose and repair your 1999 Ford Expedition. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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Got Codes P0353,P0356 after changing spark plugs I have rechecked everything

What is your question?

I have checked connectors and coils also spark plugs What else can I do

915tommyboy74 in El Paso TX

May 17, 2013

2 Replies

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FREDDY BLUEon May 17, 2013

USUALLY THE IGNITION COIL PRIMARY RESISTANCE BREAKING DOWN OR CONNECTION PROBLEMS CAUSE THESE CODES. EXCHANGE THE COILS FROM THE TWO AFFECTED CYLINDERS #3 AND #6 TO TWO OTHER CYLINDERS AND SEE IF THE CODES MOVE WITH THE COILS. THIS WILL CONFIRM COILS ARE FAULTY AND YOU CAN REPLACE THEM. IF THE CODES DON'T CHANGE WITH THE COIL POSITION THEN YOU HAVE A POSIBLE WIRING OR CONNECTOR PROBLEM. CHECK THAT THE TERMINALS INSIDE THE HARNESS SIDE OF THE COIL CONNECTORS DIDN'T GET STRECHED OUT AND LOOSE.

915tommyboy74on May 17, 2013

Thanks for the HELP.....

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jeff dynamechon Aug 13, 2013

check the flow of feul

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Popular Answer

What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 1999 Ford Expedition. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.