Christopher
Member
My temperature gauge has always been rock solid at 90°C once warmed up regardless of driving condition (motorways or in town).
I've recently had a cam belt change as I was unsure when it was changed last (Odo 186,000) and had the water pump changed at the same time as a precautionary.
Last month the Temperature sensor went erratic and either displayed 60°C or normal, so I had the sensor swapped out and the thermostat.
The temperature upto a week ago was 90°C, now it modulates between 90°C and 100°C.
The temperature seems to be ~100°C when i'm on the motorway and cools slightly to "normal" when I get onto slower roads. This is confusing me as I would think that sitting in 5th gear at ~3000rpm with a lot of air over the radiator would be cooler than up and down the rev range in slow traffic.
There are no signs of coolant loss or leaks around the hoses or expansion tank, heater works fine, the oil cap is mayonnaise free and the coolant maintains it's level and clear pink.
I'm not too concerned as the temperature never exceeds 100°C i.e. within range, but I'm curious about the underlying reason for this sudden change in temp behaviour and whether it's symptomatic of something more sinister.
Any ideas??
I've recently had a cam belt change as I was unsure when it was changed last (Odo 186,000) and had the water pump changed at the same time as a precautionary.
Last month the Temperature sensor went erratic and either displayed 60°C or normal, so I had the sensor swapped out and the thermostat.
The temperature upto a week ago was 90°C, now it modulates between 90°C and 100°C.
The temperature seems to be ~100°C when i'm on the motorway and cools slightly to "normal" when I get onto slower roads. This is confusing me as I would think that sitting in 5th gear at ~3000rpm with a lot of air over the radiator would be cooler than up and down the rev range in slow traffic.
There are no signs of coolant loss or leaks around the hoses or expansion tank, heater works fine, the oil cap is mayonnaise free and the coolant maintains it's level and clear pink.
I'm not too concerned as the temperature never exceeds 100°C i.e. within range, but I'm curious about the underlying reason for this sudden change in temp behaviour and whether it's symptomatic of something more sinister.
Any ideas??