1991 Toyota Pickup Heating up

1991 TOYOTA PICKUP
84,000 MILES • 4 CYL • 4WD • AUTOMATIC
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LELLA711
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  • 4 POSTS
I have replaced water pump and Thermastat. There is no leak, it is always full of water. When I drive for about 25 mins it heats up almost to the red but never gets in the red. The side tank of water is always boiling when I shut it off. I don't know what else to do.

Chris

lella711@cfl.rr.com
Apr 10, 2008 at 7:18 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

Have the viscus coupling tested, get the radiator cleaned & flow tested, make sure there is no restriction through the A/C condenser as this will cause over hearting if you cant get sufficient air flow through the radiator.

Mark (mhpautos)
Apr 10, 2008 at 8:13 PM
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BLACKOP555
  • ✓ASE Certified Mechanic
  • 10,386 POSTS
  • ASE Certified Mechanic
id have the radiator and whole cooling system flushed.

make sure the cooling fans are turning on and the fan shroud is not cracked either.

may be false ignition timing or running rich.
Apr 10, 2008 at 8:16 PM
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