Trouble Code P0409. Help diagnose
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From: "Enjoy every sandwich" - Warren Zevon
Trouble Code P0409. Help diagnose
2001 F150 Lariat 4X4; 5.4l
Getting a check engine light showing error code P0409. Can anyone give me any info on this and how to fix it? Seems to have to do with the EGR Vacuum Solenoid, but I don't want to replace it until I'm fairly certain it will fix the issue.
Thanks,
Jim
Getting a check engine light showing error code P0409. Can anyone give me any info on this and how to fix it? Seems to have to do with the EGR Vacuum Solenoid, but I don't want to replace it until I'm fairly certain it will fix the issue.
Thanks,
Jim
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Senior Member
Joined: Jan 2000
Posts: 1,321
Likes: 1
From: "Enjoy every sandwich" - Warren Zevon
Well, I seemed to have accidentally fixed the problem. I happened to run some Seafoam thru the brake booster vacuum hose, then also cleared the code. Hasn't back come on since. Other than the weather turning cold, that's all that has changed.
Jim
Jim