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Old 03-06-2012, 07:38 AM
Junior Member
Join Date: Sep 2003
Location: New Hampshire
Vehicle: 2004 Ford F-150
Posts: 6
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2004 SuperCrew cab rust

I have noticed a few months ago paint blisters located at on the passager rear lower corner. So I have started to take notice of other f150 of the approx same age and have notice alot have this same problem. There is no blistering or rust anywhere else on the truck execpt for the same location. So obviously there must be a problem with water getting inside the cab corner somehow.
I have gone to a ford dealer (Best Ford of Nashua) and was told that this is not a warranty fix, its just the age of thruck and in the New England area it is expected to see this type of thing.

Help....is the dealership blowing smoke?

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Old 03-06-2012, 07:56 AM
Senior Member
Join Date: Dec 2008
Location: SE Mich.
Vehicle: 2005 Ford F150
Posts: 105
it's a 8 year old truck and your probably driving on salted roads in the winter...it's gonna happen...not much you can do about except try to keep the truck as salt free as possible...wash it everytime you get a chance during the winter months...
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Old 03-06-2012, 08:01 AM
Technical Article Contributor
Join Date: Mar 2008
Location: Mansfield, P.A.
Vehicle: 2007 Ford F-150
Posts: 15,578
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And wax every painted surface, and even your frame. My previous '04 looked fantastic after 4yrs of salty P.A. winters.
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Old 03-06-2012, 08:04 AM
Senior Member
Join Date: Dec 2005
Location: SE Georgia/ Dallas, TX
Vehicle: 0002 Ford Broncos
Posts: 1,070
It's from the salt and you not spending hours laying under it with a hose. This why "winter beaters" were invented.
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Old 03-06-2012, 05:28 PM
Senior Member
Join Date: Oct 2008
Location: New York / California
Vehicle: 2008 Ford F150
Posts: 1,451
Possibly water leaking in the 3rd brake light and rotting it out?
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Old 03-06-2012, 07:32 PM
Senior Member
Join Date: Apr 2005
Location: Ohio
Vehicle: 2006 Ford F150
Posts: 1,515
I know where your talking about on the cab. I'm dreading even thinking of this myself.

2006 F150 FX4 SCrew
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Old 03-06-2012, 08:15 PM
Join Date: May 2007
Location: Ontario, Canada
Vehicle: 2004 Ford F-150
Posts: 22
I have it on both corners of my 04 S-Crew, but I live in the "Salt Belt" of Ontario. I also have it on the rocker panels. I am getting them changed on both sides this month and having all of the Grey on the bottom repainted, as well as the bumpers. It'll be close to $2000 worth of work... The actual cost of the corners and rockers were minimal. My friend owns a body shop and he showed me his List Price on the parts... I want to say around 80 for the cab corners, and 110 for the rockers or vice versa...
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Old 05-01-2012, 01:50 PM
Join Date: Jan 2009
Location: Boston
Vehicle: 2004 Ford F150
Posts: 73
I have had this issue for quite some time now but have put off fixing it. I scoped it out and followed the inside seam where the inner and outer panels of the cab meet. If you follow it up, there is an opening about half an inch wide that leads to the area. Does anyone know if this is the cause of the rust? I am going to plan on closing off that opening in hopes it will help solve the issue.

Going to stick my borescope down that opening and into the corner to see what I can find.
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Old 06-17-2012, 03:05 PM
Join Date: May 2007
Location: Ontario, Canada
Vehicle: 2004 Ford F-150
Posts: 22

Then oil the **** out of it...
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Old 06-17-2012, 03:05 PM


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