heating problem

1999 CHEVROLET VAN
116,000 MILES • V8 • 2WD • AUTOMATIC
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IBATTLE22
  • MEMBER
  • 2 POSTS
i have a 1999 chevy van 5.0,the heat will not stay on.it warms up for awhile,but later it blows cold air. the temperature guage barely move. what could be the problem? please help.
Jan 7, 2011 at 3:43 AM
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FIXITMR
  • ✓ASE Certified Mechanic
  • 9,990 POSTS
  • ASE Certified Mechanic
most likely a bad thermostat. when you drive, any heat built up is lost by radiator due to airflow thru it. a temp solution is to block radiator with cardboard in front of it. just watch to make sure engine temp dont get too high! also make sure your cooling system is full of antifreeze as low anti freeze can cause loss of heat.
Jan 7, 2011 at 3:59 AM
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IBATTLE22
  • MEMBER
  • 2 POSTS
thank you very much.
Jan 7, 2011 at 4:15 AM
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