Itzhaky Posted May 26, 2008 Report Share Posted May 26, 2008 Outside temp: 72. Average speed: 35 MPH. Driving condition: Suburban. Some open roads and some stop and go. Distance of driving: 24 miles. With cool engine I topped the coolant. Engine temp rose linearly to 196 and stopped there for a few minutes, indicating open thermostat, then settled at 200-205. Then, 24 miles later, it rose rapidly to 250, 300, 400, 500 and at 600 I stopped on the side. Behind me, on the road, was a trail of coolant. No steam from the radiator, nor from the exhausts. I was short of 1.25 gallon coolant. What gives? Radiator is 10 months old. Coolant cap is one month old. Thermostat one week old. Pump two months old. No leakage from underneath the car. Radiator pressure test good. Purge line checked ok. Any ideas? Mechanic suggested combustion test, but if I burn coolant, won’t I see fume and smell burnt coolant from the exhausts? Nothing from there. Also, no leakage to the oil compartment. Link to comment Share on other sites More sharing options...
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