• Tiny
  • Jsprings5
  • 1997 Pontiac Grand Am

Heater problem
1997 Pontiac Grand Am 4 cyl Front Wheel Drive Automatic

Cool stream was coming through the inside air vents making it impossible for me to drive. Do I need to change the heater core or just replace a hose. If so could you explain the easier way I can do this myself.

Thank you

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have the same problem?
Thursday, December 4th, 2008 AT 8:40 AM

1 Reply

  • Tiny
  • buddycraigg
  • Expert
  • 2,322 posts

Just about every Grand Am owner will have to survive the right of passage of replacing the heater core.
The heater core itself is not bad most of the time, the plastic tubes attached to the heater core that poke through holes in the firewall are what fail. The tubes split where they attach on the heater core.

Jack up the car and support it with jack stands.
Find the two hoses that connect to the heater core, about center of the firewall.
A few inches towards the passenger side of the car, and down a little is a nipple poking out of the firewall, this is a drain tube for the heater box. If it’s wet with coolant, you know you heater core needs to be replaced.

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Saturday, December 6th, 2008 AT 6:41 PM

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