Driver's side rear quarter panel question.

Blanco

New member
Driver's side rear quarter panel question - RUST!!

I have a serious rust problem with the lower part of the rear quarter panel under the driver's side bumper end piece. The whole area has completely rotted away and I can poke my finger right through it and pull bits of it off easily like a flaky pastry. I was pretty pissed to find this because really, this and underneath the driver's side wheel well trim is the ONLY area on the truck's body that has any rust, the rest is super minty!

I'm wondering what the rectangular plastic vent is that sits in there? Am I correct in thinking that its the air release for when you shut the tailgate?

This is the vent I'm referring to below. (Note: borrowed this photo from Yotatech, not my truck)

rearqtr.jpg~original


Pretty much the whole area painted black in the photo above has rotted away on my rig. I thought I'd take the end bumper piece off to get a better look but snapped the first bolt off (even with generous amounts of PB) so I will return to this later, anyway as you can see below, it's totally fallen out of the rusted panel at this point.

IMG_3188.jpg~original


I'm assuming that the rubber hose hanging next to it is a sunroof drain outlet, yes?

I was thinking of cutting the whole rusted area out, cleaning what's left, rustproofing it, painting it then cover it with the bumper end piece. Anyway, if this repair looks like it's too much, I may have to bite the bullet and see what my neighborhood body shop can do for me here.

This area just gets whacked with salt every year and this truck is about to see it's 13th winter! Anyone else in the snow (rust) belt have this problem?

Your ideas and comments always greatly appreciated.

Thanks!
 
Last edited:
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That vent is there for when you shut any door, especially the last one shut. It also allows a little fresh air in when you don't have the AC/vent turned on and/or when you have the system on recirculate. The tube? not quite sure.
 
Thanks for confirming that. Did some Googling and it looks like the tube is for sunroof drain. Having water draining in there probably doesn't help the rust in that area any! So if I'm forced to cut this area out under the bumper, I guess its okay as long as air is able to escape. I guess the vent grille just inside the driver's side behind the wheel well is connected to it from the inside. Not looking forward to this but do not want the rust to spread any further.

Still looking for input from anybody who has experienced major rust in this particular area.
 

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