Problem Reports

Lincoln Aviator

Report: Check Engine Light Due to PCV Grommet Vacuum Leaks

Lincoln Aviator Problem

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Model Years Affected: 2003, 2004, 2005

Average Mileage: 99,415 mi (63,000 mi - 155,000 mi)

A vacuum leak from the PCV grommet vacuum leak can cause the Check Engine Light to illuminate. The molded rubber hose connections may crack and collapse, causing the vehicle to run roughly. A damaged PCV hose will require replacement.

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Visitor, 2004 Lincoln Aviator

OMG!!! you saved me hundreds of dollars, thank you. fire stone did a diagnostic($89.00) and it had more than one bad read. my husband checked this site and the total repair was $7.27 for a small piece of hose.this site is wonderful.

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tlking23, 2005 Lincoln Aviator

Rookie
Yep just replaced this too along with the rack and pinion AND the transmission. Love the vehicle, very disappointed in Ford. It's becoming a very expensive lemon.

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Visitor, 2003 Lincoln Aviator, 73,000 mi

I had the same problem which escalated yesterday. It took a while to throw the codes to finally trouble shoot this.

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Visitor, 2005 Lincoln Aviator, 63,000 mi

Just found that problem out today!

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Visitor, 2004 Lincoln Aviator, 100,400 mi

Error code P0174, "System too lean (bank 2)".

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Visitor, 2004 Lincoln Aviator, 96,000 mi

There is a loud hissing sound coming from a hose with a foam like elbow attached to the intake. I can't find parts and its getting called different things like emissions hose, vacuum hose, pcv hose. No one seems to know what it is. It's on the passenger side. My car is hesitating and bogging down when I stop. Check engine light is on. I wish I could post a pic.

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Visitor, 2004 Lincoln Aviator, 155,000 mi

This situation happens to me and I replace the elbow on the PCV and it fixed the situation.

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Visitor, 2003 Lincoln Aviator, 120,000 mi

I had the same problem with the elbow on this pcv hose. The elbow also collapsed and was very brittle it should be a metal fitting. This website saved me a ton of money thanks to all!

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Visitor, 2004 Lincoln Aviator, 98,000 mi

engine light came on.

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Visitor, 2004 Lincoln Aviator, 79,000 mi

Vacuum Leak hose melted made vehicle run bad

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Visitor, 2003 Lincoln Aviator, 73,000 mi

I had the same problem which escalated yesterday. It took a while to throw the codes to finally trouble shoot this.

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Visitor, 2005 Lincoln Aviator, 63,000 mi

Just found that problem out today!

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Visitor, 2004 Lincoln Aviator, 100,400 mi

Error code P0174, "System too lean (bank 2)".

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Visitor, 2004 Lincoln Aviator, 96,000 mi

There is a loud hissing sound coming from a hose with a foam like elbow attached to the intake. I can't find parts and its getting called different things like emissions hose, vacuum hose, pcv hose. No one seems to know what it is. It's on the passenger side. My car is hesitating and bogging down when I stop. Check engine light is on. I wish I could post a pic.

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Visitor, 2004 Lincoln Aviator, 155,000 mi

This situation happens to me and I replace the elbow on the PCV and it fixed the situation.

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Visitor, 2003 Lincoln Aviator, 120,000 mi

I had the same problem with the elbow on this pcv hose. The elbow also collapsed and was very brittle it should be a metal fitting. This website saved me a ton of money thanks to all!

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Visitor, 2004 Lincoln Aviator, 98,000 mi

engine light came on.

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Visitor, 2004 Lincoln Aviator, 79,000 mi

Vacuum Leak hose melted made vehicle run bad

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Visitor, 2004 Lincoln Aviator, 80,000 mi

Happened today, my truck wasnt driving right the past week and today i was driving to work in the snow, accelerated and the check engine light comes on and now acceleration is very choppy

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servantX, 2005 Lincoln Aviator, 118,000 mi

Enthusiast
engine codes indicated lean bank 1 lean bank 2. Both 90 degree elbox rubber hoses from PCV to intack had holes melted in them. Auto supply stores did not have listings for parts, but found suitable replacements by taking hose sections to parts store and replaced.

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Lincoln Aviator

Report: Check Engine Light Due to PCV Grommet Vacuum Leaks

Lincoln Aviator Problem