Join Date: Feb 2014
Location: Bosnia and Herzegovina
County: Tuzlanski Kanton
Alfa 147 jtdm 16v Thermostat issue?
Now that the colder days have came, I have noticed that my engine temp rarely goes over 70 degrees (according to the gauge). For the 2 years I own the car it never went over 85-87 (going uphill in the summer when it is 40 degress outside) and it mostly sticks to 70 hot or cold. The reason I am worried is that last week it was snowing really badly and I had my heating turned on to the max as well as my ventilation in an attempt to defrost my windscreen, when going downhill my engine temp decreased to like 60 degrees (according to the gauge), I was going downhill with no throttle and my heating and ventilation to the max.
So I read the thread posted on your forums about testing the thermostat. However I wasn't sure about the outcome of the test. That's why I'm posting this.
This test took place over the course of like 20-30 mins. It was around 0 deg this morning. I started the car and let it run. On the picture attached I numbered the hoses related. Hose 1 started to heat pretty quickly, hose 2 was cold. It took like 10 mins of idling for the gauge to move from the bottom to like 55-60 degrees. Hose 1 was even hotter while the hose 2 was still cold. I wanted to speed the process up a bit so I applied some throttle and run the engine on 2k rpm and temp went up fast to 80 degrees, after that I let it idle a bit more, I saw the temperature decrease and the hose 2 was getting hotter too. Temp went down to 70 and stood there, I let it idle for another 5-10 mins and temp stood on 70 degrees mark.
Thank you for reading this. Can you tell me is there something wrong with my thermostat or my temp sensor/gauge? I like to have my car in the best condition possible so I would like to take care of it if there is something wrong.