Should I flush the radiator

1992 NISSAN TRUCK
250,000 MILES • 4 CYL • 2WD • MANUAL
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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
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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
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