159 TBi engine temperature..
I have an issue with engine temp on my 159 TBI.
2 weeks ago my garage replaced the thermostat becouse the gauge showed fluctuations of coolant temp from 80 to 90C. Alfter replacement everything seemed OK as the guage was stabilized at 90C.
Now the outside temperature is -3C and the gauge gets weak again.
When I drive in a city in a non-dynamic manner, the interior heating is set at 20C (fan at 2 bars) and when I stop in a traffic for 30 seconds or so, after I set off again the gauge drops to 85C and after 2-3 seconds returns to 90C.
But if I drive in a dynamic manner, the gauge is stabile at 90C.
As I connected with Multiecuscan I know that 85C on the gauge is 75-78C in reality, so I'm afraid that the engine is not worm enough...
Is this typical for TBI? Maybe there is another problem with the cooling system?
Anyone, TBI users, have similar observations?