Radiator repair question - extended (not GM) warranty

[froggy47]

The dealer is going to repair my radiator (96LT4 48k miles) by reusing the alum core & attaching new tanks (plastic?). This is under extended warranty (not GM). The warranty has 4 years 48k miles to run so he must have faith in this repair.

I was surprised that he won't replace the whole thing.

Anyone have any experience with this repair?

Thanks!

 

[phxraptor]

If it was because of a leak the core rarely leaks unless damaged. It is not uncommon for the tanks to leak where they bond to the core BECAUSE they are plastic.

 

[froggy47]

Do you know how they bond the tanks to the core, crimp, "glue" heat bond?

Thanks.

 

[phxraptor]

Do you know how they bond the tanks to the core, crimp, "glue" heat bond?

Thanks.

I don't know for sure but I think its like an epoxy process. Something I'm sure a radiator shop should do since the cooling system operates under pressure.

 

[Alex D]

I replaced mine last spring and have done several over the past two years......it is always the same story......the gasket in the hot side tank gives after a few years.......the radiator core has crimp tabs on the side which are used to crimp the plastic side tanks to the core using a rubber or silicone gasket as a seal......there is a repair proceedure and a tool to crimp in the Helms manual..........I just bought a new radiator from radiator.com......was $150 plus $6 for overnight shipping.......works fine and fit perfectly

Do you know how they bond the tanks to the core, crimp, "glue" heat bond?

Thanks.