2000 Toyota RAV 4: Overheating

Tiny
LMOFFETT
  • 2000 TOYOTA RAV4
  • 4 CYL
  • FWD
  • AUTOMATIC

2000 Toyota RAV 4. 400845 miles. Overheating. Example 1: exiting from interstate-normal temp; 2 blocks-gauge rises close to the red zone very quick then drops back down to normal just as quick. Then goes up-then down, up then down. It moves as quick as the speedometer does. Radiator-replaced; hoses-replaced; thermostat tested as good. Help?

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Thursday, August 4th, 2011 AT 6:05 PM

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Tiny
WRENCHTECH
  • EXPERT
  • 20,690 POSTS

It sounds like *** has air pockets in the system. It's probably due to a slow leak and you would need to get it pressure tested to determine that.

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Thursday, August 4th, 2011 AT 6:37 PM
Tiny
LMOFFETT
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Is it truely running hot? How does the pressure test reveal the leak?

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Thursday, August 4th, 2011 AT 9:27 PM
Tiny
WRENCHTECH
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It doesn't find it for you. It induces the leak so the tech can search for it. It also reveals is the system is holding pressure or leaking down.

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Thursday, August 4th, 2011 AT 9:37 PM

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