Should I flush the radiator

1992 NISSAN TRUCK
250,000 MILES • 4 CYL • 2WD • MANUAL
Avatar
WHODAT59
  • MEMBER
  • 1 POST
Have never flushed radiator. Water rust color. No real engine issues but not having done this I wonder if it would cause too much damage with leaks etc. I can't afford a new truck.
Aug 20, 2020 at 1:35 AM
Advertisement
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

Yes, I would definitely flush out the system and replace the thermostat as well. Keep flushing it until you get good clear water. Then you can add you coolant to the system..

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

https://www.2carpros.com/articles/replace-thermostat

Roy
Aug 20, 2020 at 1:53 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.