2004 F150 vent valve P0446

What is your question?

I have a 2004 F150 that is giving me a vent valve code. It refuses to start in the mornings or at night when the temp seems a little cooler. I have replaced the vent valve but it is still having the same issue. I checked the wiring as best as possible. Any suggestions?

TDSmith70 in White Plains KY

Jul 25, 2012

Popular Answer

What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 2004 Ford F-150. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

2004 Ford F-150 auto repair 2004 Ford F-150 estimates 2004 Ford F-150 questions 2004 Ford F-150 problems 2004 Ford F-150 recalls

What is your question?

Popular Answer

2004 F150 vent valve P0446

What is your question?

TDSmith70 in White Plains KY

Jul 25, 2012

1 Reply

Popular Answer

milesautoon Jul 25, 2012

You probasly have a wiring issue with the P0446 code. Look for a corroded red with yellow tracer under the drivers step as the harness runs under this and goes through the floor right there. Have seen others with this problem. The hard start issue could be unrelated. I would start cby checking fuel pressure when the hard start happens.

Join the conversation!

Popular Answer

What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 2004 Ford F-150. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.