I was just wondering if you could use joint and crack sealer exhaust seal on a radiator.
Jun 6, 2022 at 10:15 PM
Crack in radiator
2004 NISSAN ALTIMA
TKAYB8
- MEMBER
- 2 POSTS
Advertisement
STEVE W.
- ✓ASE Certified Mechanic
- 15,200 POSTS
No. There isn't much that sticks to the engineering plastic they use for radiators. Plus, it has to handle the pressures that try to expand the crack. I have plastic welded cracks before but only when parts are either unavailable or very expensive.
The best solution is to replace the radiator. On that car it's not that hard, you drain the coolant, disconnect the lines and fans and lift the entire fan and radiator assembly out at the same time. Then you swap the fans over to the replacement unit and install them as an assembly. That system can be difficult to purge the air out of without a vacu-fill system, you can usually get them as loaner tools.
The best solution is to replace the radiator. On that car it's not that hard, you drain the coolant, disconnect the lines and fans and lift the entire fan and radiator assembly out at the same time. Then you swap the fans over to the replacement unit and install them as an assembly. That system can be difficult to purge the air out of without a vacu-fill system, you can usually get them as loaner tools.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Jun 6, 2022 at 10:34 PM
Thank you so very much.
Jun 7, 2022 at 8:00 AM
STEVE W.
- ✓ASE Certified Mechanic
- 15,200 POSTS
You are welcome.
Jun 7, 2022 at 10:53 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.