Engine coolant

1999 SATURN SW2
108,734 MILES • 4 CYL • AUTOMATIC
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LEANORD1
  • MEMBER
  • 2 POSTS
I drive for 10 miles in the freeway or something and my coolant boils and gets hotthat smok comes out all the time? Why is it cause of my code. P 0452 or what i allready flushed it.
Apr 14, 2016 at 9:30 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Have you replace the radiator cap yet?When the radiator cap goes bad they don't hold the correct pressure and will allow coolant to escape even if the engine isn't over heating.Does your radiator fan work?
Apr 14, 2016 at 10:34 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Also do you have a scan tool that can read live engine data?
Apr 14, 2016 at 10:35 PM
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