Author Topic: How to fix oil and water temp in 159  (Read 297 times)

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Imk1ll3r

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How to fix oil and water temp in 159
« on: November 12, 2019, 07:15:02 PM »
Hello, I have a Alfa Romeo 159 2.2 jts selespeed. I change engine after last Christmas and change timing chain after one month.

Now I got a problem after I change Thermostat housing. When I driver on free highway, speed over 140 oil temp will down to 65 water temp will down to 60, leaving free highway the oil and water temp need a long time up to 110 and 90. And oil temp up to 115 water temp on 90 in too much traffic.

In the first I think is the Thermostat housing(this  thermostat housing will be working early,and same time change coolant) no good so I go a autowork change a new one(they say itís a same original).


Now I donít know how to repair the car, can you give me some ideas?


I got this car over 4 years, I buy in Sydney and I live in Adelaide.

Imk1ll3r

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Re: How to fix oil and water temp in 159
« Reply #1 on: December 01, 2019, 02:13:56 PM »
I change Thermostat。itís a working on 82 mod.
Now oil temp on 100 water temp on 90 when Iím not over 100km/h.
This is I three times to change Thermostat. First one working on 78. Next one on 91. And last one on 82.
Fans is working good.
But when I over 100km/h, water temp going down first, then is oil temp.

I think I got some problems on water systems.

On The sqare place (a alfa parts shop in Adelaide) you can buy a whole thermostat, but I always change a thermostat housing. I donít know is the thermostat and housing doesnít match.

Can you give me some ideas?

Iím sorry, I canít speak English fluently.

Imk1ll3r

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Re: How to fix oil and water temp in 159
« Reply #2 on: December 02, 2019, 09:52:12 PM »
Today check on free highway.Water hose is cold ,and Water hose donít have pressure. Next time will be change new one and check on free highway.

Imk1ll3r

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Re: How to fix oil and water temp in 159
« Reply #3 on: December 02, 2019, 09:54:52 PM »
By the way, some water hose screw slide wire. Use for Air release