While the mechanic was replacing intake manifold, he asked if I want to replace coolant hoses of the engine cooling system. He said that it was easier to do so with the leaking manifold taken off. Why not, I don’t want how long the existing hoses have served the car, likely from the day 1. Therefore, I gave him the green light. At the time, I knew the new hose is the silicone ones but didn’t pay much attention to what exactly it is.
Finally, what a surprise when I saw it!
My 156 twin spark engine stalling happened and became a continuous problem at about 2 years after the purchase. The symptom began from a start up problem that the engine only fired up with the accelerator pedal depressed when cranking.
High fuel consumption of my 156 has been puzzling me from day 1, the figure was about 100km/12.x liters or 22.6 mpg. It is high for a 2-liter engine here.
From a local Alfa fan club gathering, a friend suggested replacing the O2 sensors when we had talked about the fuel consumption issue. I remembered that some discussions on car forums suggested something similar.
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