1992 Chevy Lumina Coolant flows back into reservoir

1992 CHEVROLET LUMINA
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JOHNKNUCKLES
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  • 1 POST
Engine Cooling problem
1992 Chevy Lumina Front Wheel Drive Automatic 100600 miles

I've replaced radiator, water pump, thermostat and heater core. There are no visible leaks in the system when car is running. Upon acceleration the reservoir fills up and discharges out of the overflow. The car runs smooth with no vapor comming from the exaust.
Mar 23, 2009 at 11:47 AM
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DOCFIXIT
  • ✓ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Try a new radiator cap
Mar 24, 2009 at 11:05 AM
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