Read If Your H3 Radiator Has Cracked or Leaked
My tank just went at 59,000 miles. I ordered a new one from gmpartsonline.net and will be doing the work myself. Is there a link to a write on how to change it out? I found one but it was a bit vague. Should also be concern about getting air in the system? Also were the transmission lines hard to remove? Thanks!
Nooooooooooo!!!
Holy Crap NO!
it's hard to see but I have rubber fuel line on the core support for an insulator.

look closer at the lower right of the top pic, you can see the white writing on it....
Holy Crap NO!
it's hard to see but I have rubber fuel line on the core support for an insulator.

look closer at the lower right of the top pic, you can see the white writing on it....
Last edited by R-code17815; Nov 20, 2013 at 04:09 PM.
Mine had the same large crack on top too. It took me an hour or so to remove it . I took it to my local radiator repair shop and the put a new top on it for $65.00. They had it done in a couple hours . I took it home and was up and running that day. Fluids and all I was out about $100.00 .
What I forgot to say is that the radiator shop had the top in stock because they repair a lot of these type GM radiators. After read more of the treads , I filed a complaint with NHSTA https://www-odi.nhtsa.dot.gov/VehicleComplaint/index. . I also filed one about my A/C resistor and plug melting.




