Question about 1999 Volvo V70

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Engine running to cool

If standing still temp runs normal and get great heat,once i start driving temp drops down to cold and heat becomes luke warm to cool,checked coolant level and it is fine,but after driving 30 miles i could open coolant cap and there seemed to be no pressure.

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Replace the thermostat. If thermo is stuck open, coolant only heats up when there is no flow over radiator(idle) and then cools down when driving. Also, check coolant level, same response as stuck thermo.

Posted on Feb 06, 2009

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