Rice Eater
New member
I have seen quite a few Ty's with rust above the rear glass. My Ty is clean and I would like to know where the moisture comes from so I can try to prevent this from happening.
Chris
Chris
What Causes Rust Above Rear Glass?
- Thread starter Rice Eater
- Start date
Rice Eater
New member
Re: What Causes Rust Above Rear Glass?
Thank you. Any ideas for the best route of prevention?
Chris
Thank you. Any ideas for the best route of prevention?
Chris
Norm
Donating Member
Re: What Causes Rust Above Rear Glass?
pull the headliner down, check and see if there is any surface rust, if there is sand it, prime and seal it and even since it is not seen, you could even undercoat it.
pull the headliner down, check and see if there is any surface rust, if there is sand it, prime and seal it and even since it is not seen, you could even undercoat it.
dgoodhue
BuSTeD 4.3
Norm
Donating Member
Re: What Causes Rust Above Rear Glass?
actually winter has zero to do with rust. California has winter. Zero rust
actually winter has zero to do with rust. California has winter. Zero rust
Jimmy
Banned
Re: What Causes Rust Above Rear Glass?
If you are talking about a truck with a roof rack,its because the screws that hold the rack on are not sealed.The roof is basically a colander when it rains.
If you are talking about a truck with a roof rack,its because the screws that hold the rack on are not sealed.The roof is basically a colander when it rains.
dgoodhue
BuSTeD 4.3
Re: What Causes Rust Above Rear Glass?
He lives in MI where they salt the roads in the winter.
He lives in MI where they salt the roads in the winter.
Rice Eater
New member
Re: What Causes Rust Above Rear Glass?
My Ty basically lives in the garage and I was told it has never been driven in the Winter when I bought it in NC.
Yes, it has the roof rack option. I am going to pull the headliner and see what I can do from the inside. Given the roof rack option would it be better to remove each fastener and add sealant from the exterior or can I access the fasteners from the inside.
Chris
My Ty basically lives in the garage and I was told it has never been driven in the Winter when I bought it in NC.
Yes, it has the roof rack option. I am going to pull the headliner and see what I can do from the inside. Given the roof rack option would it be better to remove each fastener and add sealant from the exterior or can I access the fasteners from the inside.
Chris
Jimmy
Banned
Re: What Causes Rust Above Rear Glass?
Leave the headliner alone.Seal the colander.
Captain Morgan
Moderated User
Re: What Causes Rust Above Rear Glass?
the truck I bought off of Gary last year is an original non-roof rack truck, it still had rust above that back window and its the ONLY place there is rust on the truck. The floor pans and wheel wheels are MINT, not to mention its an original Florida truck and Florida has no winter.
the truck I bought off of Gary last year is an original non-roof rack truck, it still had rust above that back window and its the ONLY place there is rust on the truck. The floor pans and wheel wheels are MINT, not to mention its an original Florida truck and Florida has no winter.
Norm
Donating Member
Re: What Causes Rust Above Rear Glass?
but Florida has salt water and salt in the air. Seen a few people from where I live buy cars from Florida and then when you crawl under them there is rust issues.
but Florida has salt water and salt in the air. Seen a few people from where I live buy cars from Florida and then when you crawl under them there is rust issues.
Captain Morgan
Moderated User
Re: What Causes Rust Above Rear Glass?
I said the rest of the truck is mint, floor pans, wheel wells, frame, suspension parts, nuts and bolts, etc. It might not be "Arizona mint", but there isnt a single issue anywhere else on the truck, except above the back window.
Salt air and winter do not explain why it attacks above the back window on Blazers/Jimmys/Typhoons.
Sorry not trying to be argumentative, I don't have a solid answer to give either, but it really is a very common issue on all these trucks, more so than anyplace else on the body.
yup, I live on the ocean in NJ, I've dealt with salt air my whole life, its the reason why I ended up cutting up my El Camino last year.
I said the rest of the truck is mint, floor pans, wheel wells, frame, suspension parts, nuts and bolts, etc. It might not be "Arizona mint", but there isnt a single issue anywhere else on the truck, except above the back window.
Salt air and winter do not explain why it attacks above the back window on Blazers/Jimmys/Typhoons.
Sorry not trying to be argumentative, I don't have a solid answer to give either, but it really is a very common issue on all these trucks, more so than anyplace else on the body.
ziembic
Donating Member
Re: What Causes Rust Above Rear Glass?
Also behind the cladding on the lower rear portion of the front fenders.
Also behind the cladding on the lower rear portion of the front fenders.
V
Donating Member
Re: What Causes Rust Above Rear Glass?
I've taken apart two Blazers with no signs of rust on the back of the roof. Here's what I've found:
If you had x-ray vision and could see past the dome light bulkhead, this is what you'd see.
The top of the pic is the underside of the roof, the bottom of the pic is the structure that supports the glass hinge (red dot). The truck was white. The green coat is complete. Looks great, right?
After removing the structure, there is rust at almost every spot weld. The green coat is pristine throughout the underside of the roof. There is nothing but seam sealer protecting the holes for the hinge (red dot).
The last pic represents a typical corner at the top of the hatch opening. The radius of the roof (red dot) is different from the radius of the underlying structure. Seam sealer is the only thing preventing moisture from getting inside and gathering under the roof. There was a hole in the sealer of this particular roof.
Hope that helps.
I've taken apart two Blazers with no signs of rust on the back of the roof. Here's what I've found:
If you had x-ray vision and could see past the dome light bulkhead, this is what you'd see.
The top of the pic is the underside of the roof, the bottom of the pic is the structure that supports the glass hinge (red dot). The truck was white. The green coat is complete. Looks great, right?
After removing the structure, there is rust at almost every spot weld. The green coat is pristine throughout the underside of the roof. There is nothing but seam sealer protecting the holes for the hinge (red dot).
The last pic represents a typical corner at the top of the hatch opening. The radius of the roof (red dot) is different from the radius of the underlying structure. Seam sealer is the only thing preventing moisture from getting inside and gathering under the roof. There was a hole in the sealer of this particular roof.
Hope that helps.
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Rice Eater
New member
Re: What Causes Rust Above Rear Glass?
Thank you for the information. I am going to take a look at both the seam sealer and roof rack holes.
I know the bottom of the doors and tail gate areas are prone to rust but I was only focusing on the roof. Good information about preventing rust in those other areas are all welcomed too.
Chris
Thank you for the information. I am going to take a look at both the seam sealer and roof rack holes.
I know the bottom of the doors and tail gate areas are prone to rust but I was only focusing on the roof. Good information about preventing rust in those other areas are all welcomed too.
Chris