99 cooling/heating issues

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#11

02-07-2022, 01:59 PM

drivernumber3

Monte Of The Month -- May 2015
Monte Of The Month -- March 2017

Join Date: May 2013

Location: Nebraska

Posts: 5,297

Quote:

Originally Posted by black99

Live in a small town of 600 35 miles north of Cedar Rapids. I never the car in winter, but due to the grandson taking over my work, I reluctantly started driving the 99. I had not driven it since the spring of 21. The temperature if I recall correctly never got up to what it should have. I always got decent mileage out of it, but with this cold weather and lowered operating temp, it is always running rich. This cold weather and a 6 day work week doesn't give much time to work on it. Come warmer weather, will do the flush and whole nine yards, see I can get it straightened out.

Back in 2017 I was stationed up that way spent a few months in Decorah, and then Waterloo, Iowa inspecting roads and doing some grant work. The one I have usually runs colder too, but now I don't use it much in the winter time. A few years ago the low coolant sensor went bad but the coolant was fine. What happens with these Cars is the Anti-freeze is Red instead of Green and that seems to require more attention than the Green stuff. One needs to flush the Radiator a bit more often maybe a 20 to 30 K thing.
I have never been able to do better than about 25 to 27 miles per gal. Years ago I owned an Olds 98 with a 3800 motor in it and would get 35 mpg consistently. Anyway let us know how this turns out.