Dirty Rear End

[ShannonAnn]

Anyone know of any tricks/aftermarket mods to help with the airflow in the 2014 Tahoe? I have owned several SUV’s and never owned any that get so ridiculously dirty as the rear end of my Tahoe. I live in western Washington and it rains here... a lot. This thing is dirty as soon as I wash it, Uuugh!! The hatch is disgustingly dirty after a week of rainy roads. I don’t even want to touch it to open the hatch. HELP!!
Loving the Tahoe, Hating the Dirt Factor

 

[OR VietVet]

Welcome to the forum from Oregon. Likely the way the air flows over and around it causing it to suck dirt at the rear. The slip stream is to help with fuel mileage and engineer likely did not care about the dirt.

I don't have a clue but there may be some aftermarket air foil that you can install to help with the problem or someone here knows.

I don't have that problem with my 2005.

 

[ShannonAnn]

Welcome to the forum from Oregon. Likely the way the air flows over and around it causing it to suck dirt at the rear. The slip stream is to help with fuel mileage and engineer likely did not care about the dirt.

I don't have a clue but there may be some aftermarket air foil that you can install to help with the problem or someone here knows.

I don't have that problem with my 2005

Ya, thanks, I understand why it’s happening but looking/hoping for someone that’s had this problem and come up with a solution. I’ve got decent mudflaps already.

 

[OR VietVet]

I am talking about something at the roof area. Got no idea what it would be but it sounds like it is not necessarily coming from the rear tires throwing dirt up but an air flow that is pulling grime in.

 

[Jason in DLH]

I don’t believe there’s any way around it. Can apply a good hydrophobic ceramic coating (or a good wax) so it’s more easily removed with a washing. And I hear you. This happened after one bird watching trip around some dirt roads...

 

[Jason in DLH]

It certainly does get everywhere...

 

[Tonyrodz]

I'd think some kind of spoiler or airfoil pointing down, at a sharp angle. It would probably at least keep the rear window clean.

 

[wjburken]

Might try some of these and see if that helps the air roll down better. Turbulent flow changes direction better than laminar flow.

 

[Bill 1960]

You can donate your money to attempt a cure, but I’ve never found one. It’s just a fact of life with any square bodied vehicle.

 

[OR VietVet]

Man, do I love my NBS Tahoe even more now!

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

I don't have this issue on my 2007 Yukon XL, at least, certainly not nearly to the extent that you do.

 

[ShannonAnn]

I don’t believe there’s any way around it. Can apply a good hydrophobic ceramic coating (or a good wax) so it’s more easily removed with a washing. And I hear you. This happened after one bird watching trip around some dirt roads...

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Might try some of these and see if that helps the air roll down better. Turbulent flow changes direction better than laminar flow.

View attachment 269165

Hey, I hadn’t thought of those, great idea, will investigate further Thanks!

 

[ShannonAnn]

You can donate your money to attempt a cure, but I’ve never found one. It’s just a fact of life with any square bodied vehicle.

 

[ShannonAnn]

I don’t believe there’s any way around it. Can apply a good hydrophobic ceramic coating (or a good wax) so it’s more easily removed with a washing. And I hear you. This happened after one bird watching trip around some dirt roads...

View attachment 269159

Oh man,
I feel your pain for sure,

 

[kicka]

I had something similar to this on a 99 Yukon. It directs the wind flowing over the vehicle down the backside to reduce the spray kicking up from behind. This one is a GTS® - Tape-On Aerowing™ Rear Window Deflector.

 

[TxVet33]

I don’t believe there’s any way around it. Can apply a good hydrophobic ceramic coating (or a good wax) so it’s more easily removed with a washing. And I hear you. This happened after one bird watching trip around some dirt roads...

View attachment 269159

dam man give it a bath. we just had a dust storm here in Abilene, TX. I live in the city and my 2019 XL gets just like that.

 

[Beagleman]

Yeah, my 19 Premier does too, and it is a full days work to get her spotless again.....

 

[OR VietVet]

Yet, another reason I love my NBS.

 

[George B]

Yet, another reason I love my NBS.

We know...

 

[OR VietVet]

We know...

Indeed you do.