heater

1998 ISUZU AMIGO
160,000 MILES • 4 CYL • 2WD • MANUAL
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JODI09
  • MEMBER
  • 2 POSTS
heater blows cold. if i shut the heat off for awhile, then cut it back on it blows warm for a minute, then turns to cold again
Feb 4, 2011 at 12:14 PM
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KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
Here are possble causes.

Engine coolant temperature low. Check the thermostat operations.

Insufficient engine coolant. Top up if necessary.

Insufficient engine coolant circulation. Checked for clogged hoses.

Clogged heater core. Have heater core flushed.

Feb 7, 2011 at 12:37 PM
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