My 04 Yukon won't start throwing p0178 p0179 p0174 and p0171

What is your question?

My 04 will crank but no start changed the spark plugs checked vacuum lines and fuel lines check the maf and still nothing any ideas what it can be

How long has your 2004 GMC Yukon had this problem?

A week

Visitor

in Pembroke KY

Mar 13, 2019

Popular Answer

What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 2004 GMC Yukon. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

My 04 Yukon won't start throwing p0178 p0179 p0174 and p0171

What is your question?

My 04 will crank but no start changed the spark plugs checked vacuum lines and fuel lines check the maf and still nothing any ideas what it can be

How long has your 2004 GMC Yukon had this problem?

A week

Visitor

in Pembroke KY

Mar 13, 2019

1 Reply

Popular Answer

AskAlexon Mar 13, 2019

You have codes for the flex-fuel sensor but start by checking the fuel pressure first. Alex

Irarriolaon Mar 14, 2019

It has great fuel pressure I cleaned the canister and the pressure was better then before

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Popular Answer

What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 2004 GMC Yukon. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.