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Thank God I was wrong
Posted 11 April 2005 - 11:44 PM
Three months went by before I got around to doing anything on that engine. By then I started to question if the test was faulty. It occured to me that the coolant wasn't circulating at the time of the test. It was stationary and because of that was starting to boil at the block when it started to overheat. Then I remembered hearing a whistling/ringing sound before the car started it's overheating and reasoned it could have been a water pump bearing. On that hunch I decided to just replace the water pump and thermostat only and see if the engine ran fine or if I still had problem. Well, my hunch was right, the water pump was fried, metal particles in the coolant and everthing. (Should've checked that) Long story short, the cars been running three weeks now and no problems. I'm glad I didn't jump right into replacing the head gaskets.
So a word of warning, those tests don't work when you're coolant is boiling. Makes sense now but had both me and a mechanic fooled.
Posted 12 April 2005 - 02:39 PM
CO in the coolant could stem from the boiling filling the overflow and then as the coolant gets pulled back during the cool down it pulls some air back in. The air in an engine room could easily contain some CO.
Posted 12 April 2005 - 03:33 PM
Sounds like your cured!!!
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