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Time to bypass the temp compensation board... but... 200 1992

posted by  Mimmoccc on  Wed Sep 6 23:28 CST 2023
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Mine is a B200F (n.a.) LH 2.4 and the original equipment was 92°, and, as you say, the hand of the gauge has always sat just a bit over the middle.
The problem came out some months ago, with normal outside temperature (75°F). During this summer, when we hit 105-107°F, and with AC working all the time, the hand didn't get any higher than over 10.
As for the cooling department, I made a complete refit 4 years ago (Nissen radiator, Hepu water pump, new visco-fan, new pipes, new reservoir, new metal pipe from the pump to the back of the block, and Glysantin Basf G64 antifreeze. Then, while trying to solve the issue 1 month ago, I got a new thermostat, fresh antifreeze, and a new reservoir cap (black 75kpa).
So I am almost sure (and I hope) it is an electrical problem (sensor, wiring, or stabilizer)
Unless it is something happening in the head (as I said the car has >650k km...). In that case... mmmh... I have to ask my wallet for a favor :-)





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