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1997 Toyota 4Runner No heat but overheating?

Tiny
BIGMAC
  • MEMBER
  • 1997 TOYOTA 4RUNNER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 172,000 MILES
I’v basically had no heat all winter from the main heater or the rear. I have back flushed the heater core and the engine was rebuilt 2 years ago with a new water pump. Recently the truck started overheating in the morning. If I stop and shutdown for 10 min it runs normal the rest of the day.
Oil looks fine, trans fluid is clean. Any thoughts.
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Friday, January 16th, 2009 AT 8:52 AM

2 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
INCORRECT TEMPERATURE OUTPUT
Inspect for broken or out of adjustment control cables, heater hoses leaking or clogged, or faulty water pump. Inspect for broken air dampers, clogged air ducts, leaking or clogged heater core, or faulty heater control unit.
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Friday, January 16th, 2009 AT 9:31 AM
Tiny
RAUL RIZZUTI
  • MEMBER
  • 8 POSTS
Repalce radiator cap
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Sunday, February 1st, 2009 AT 6:14 AM

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