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  • November 21, 2024, 11:35:35 AM

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Author Topic: Overheating... just the thermostat?  (Read 11371 times)

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Offline BenM

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Re: Overheating... just the thermostat?
« Reply #15 on: December 14, 2011, 12:27:17 PM »
Pick up an inexpensive tester and check it afterward. I haven't seen one at the store in ages, but they used to be about $1.00 by the register.
NSS#47184

1987 AMC Eagle Sedan -- 1976 Pacer Coupe -- 1968 Pontiac Tempest Custom S -- 1940 Mercury (& a 2002 Jetta Turbodiesel, 5 spd., the Wife's Daily Driver)

Offline WoodenBirdOfPrey

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Re: Overheating... just the thermostat?
« Reply #16 on: December 15, 2011, 05:37:06 PM »
The new sensor/sending unit is installed, problem solved!  She heats right up to the bottom of the green zone and stays there nice and happily.

I also checked the freeze point of the coolant.  Basically I had the whole system flushed out with distilled water, and drained what I could out of it.  Per the chart on the peak antifreeze bottle I added 6 quarts of straight coolant and filled it the rest of the way with distilled water, which is supposed to achieve a freeze point of -34 in a 14 quart cooling system.  After driving it around to get the coolant mixed evenly, I took a sample with my digital antifreeze refractometer and came up with -33 so I came pretty darn close to my target!
87 Eagle Woody Wagon "Virginia" 4.2 Auto 174k

 

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