Overheating

2002 NISSAN XTERRA
256,000 MILES • 3.3L • V6 • 4WD • MANUAL
Avatar
2002NISSAN2002
  • MEMBER
  • 2 POSTS
Coolant leaks into resolver, but does not recirculate back into the radiator. It would just overflow the resolver container. I had change the thermostat and coolant. Problem still persist. What can it be? Do i need new radiator or the water could be bad?
Aug 13, 2019 at 6:16 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good morning,

I would start by replacing the radiator cap. One of the valves in the cap may be bad.

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Roy
Aug 13, 2019 at 6:50 AM
Avatar
2002NISSAN2002
  • MEMBER
  • 2 POSTS
I replace new cap and radiator and i still have the same problem. The coolant would drain into the reserve reservoir, but would not drain back into the radiator, and i would have to keep refilling. Any thoughts what else it could be?
Nov 13, 2019 at 10:19 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Okay, you need to pressure test the system. The only way the cap will recover the coolant is if the system is in a vacuum. If it has a leak, there is no vacuum.

You can rent a pressure tester at a parts store.

https://www.2carpros.com/articles/radiator-pressure-test

Roy
Nov 13, 2019 at 3:41 PM