White stuff under hood

[Dave 57]

Hi, wondering is anyone has seen this? On top of both fenders, under the hood. Looks like coming from roof pillars
? Thanks. 2017 Tahoe LT 23,000 miles.

 

[exp500]

Driving in salt? Following a dumpster full of old drywall?

 

[Doubeleive]

Hi, wondering is anyone has seen this? On top of both fenders, under the hood. Looks like coming from roof pillars
? Thanks. 2017 Tahoe LT 23,000 miles.

looks to me like it matches the rest of the dust and crud under the hood, pressure wash it and clean it. I do mine about twice a year.
A little soap and water wont hurt anything. How do think used car dealers make a car look nice?

 

[Blackcar]

Hi, wondering is anyone has seen this? On top of both fenders, under the hood. Looks like coming from roof pillars
? Thanks. 2017 Tahoe LT 23,000 miles.

Do you use automatic car wash?

 

[Dave 57]

Yes, Maybe coming from the sunroof drains?

 

[Dave 57]

looks to me like it matches the rest of the dust and crud under the hood, pressure wash it and clean it. I do mine about twice a year.
A little soap and water wont hurt anything. How do think used car dealers make a car look nice?
View attachment 454368

Really not as cruddy as the pic shows, but I like yours better. I'll get to it when it stops snowing here.

 

[Dave 57]

Driving in salt? Following a dumpster full of old drywall?

Salt yes, drywall no, lol.

 

[Doubeleive]

Salt yes, drywall no, lol.

just looks like typical underhood crud, water does run down from the roof/windshield/pillars, there is a rubber seal along the edge of the hood gap but nothing to stop flow into the cracks and crevices otherwise, all you can really do is clean it up once in a while. I use gunk stage 2 to give it a little shine afterwards, the can says it helps prevent dirt from clinging back on, not sure how true that is but it makes it look nice

 

[k_arnold72]

Worst case scenario, could be dried coolant. But there's usually a trail leading back to the source of the leak.

 

[Doubeleive]

Worst case scenario, could be dried coolant. But there's usually a trail leading back to the source of the leak.

Lol, not coolant. it's a 8 year truck it's dirt and crud, a little elbow grease and it will look like new again.
btw coolant tank, heater hoses, etc. is on the other side of the engine compartment and dexcool is ORANGE color.
The newer 21+ do have the coolant tank on the drivers side

 

[k_arnold72]

We all drive the same trucks lol I know where the tank is and what coolant we use. But when you have a leak, it can end up anywhere in spraying distance. I had a loose water pump pulley bearing, so when coolant leaked, it got onto the pulley and got sent in every direction. And when coolant sits and dries, the residue does not remain orange. ‍Just my experience, yours may vary.

Lol, not coolant. it's a 8 year truck it's dirt and crud, a little elbow grease and it will look like new again.
btw coolant tank, heater hoses, etc. is on the other side of the engine compartment and dexcool is ORANGE color.
The newer 21+ do have the coolant tank on the drivers side

 

[Doubeleive]

We all drive the same trucks lol I know where the tank is and what coolant we use. But when you have a leak, it can end up anywhere in spraying distance. I had a loose water pump pulley bearing, so when coolant leaked, it got onto the pulley and got sent in every direction. And when coolant sits and dries, the residue does not remain orange. ‍Just my experience, yours may vary..

what you are seeing in his photo I can 10000% assure you is not a coolant leak. It is dust and dirt and crud