Overheating issue

2001 OLDSMOBILE ALERO
165,550 MILES • 3.4L • 6 CYL • 2WD • AUTOMATIC
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THAYS
  • MEMBER
  • 1 POST
I fixed the head gasket changed water pump, thermostat, and tensioner. Now I do not know if it is the radiator or the cap. If we leave the cap a little loose it seems okay, but if the cap is tight the hoses get tight and overheats. The radiator makes a loud gurgle popping sound when pressure builds. Please help at wits end.
May 25, 2016 at 1:45 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Get the radiator core cleaned and fit a new cap regardless, also test that the thermostat is working, boil it up in a pot of water on the stove, use a thermometer and watch it open at the correct temperature, do not drink the soup it makes as it will taste awful...lol
May 25, 2016 at 8:42 PM
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