bigbluetruck
New Member
- Posts
- 7
i have a 1994 discovery 300 tdi auto, yeaterday i had to replace the waterpump due the bearing going, so replace with a geniune one, today after getting up to temperature, put the heating on and was blowing cold air, then after driving a bit further the temperature guage went right to the top for about a minute, so went to pull over then all of a sudden the temp went back down to half way, and the heater was blowing hot air, its done this twice today! can anyone shed some light on this please?????