overheating and blowing cold air

1991 NISSAN NX
144,000 MILES • 4 CYL • FWD • MANUAL
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DRIZZN
  • MEMBER
  • 2 POSTS
heater blowing cold air in my 1991 nissan nx 1600
Dec 12, 2010 at 7:44 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Replace the thermostat and see what happens
Dec 12, 2010 at 7:47 PM
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DRIZZN
  • MEMBER
  • 2 POSTS
i already did
Dec 12, 2010 at 7:49 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check the water pump and radiator if its clogged if both okay could be airlock try bleeding it-don't work get it block and pressure tested-
Dec 13, 2010 at 7:45 AM
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