Matt2e0fgx Posted December 12, 2019 Share Posted December 12, 2019 How warm does or should a disco 2 run ? Mine is only 1/4 - 3/8" above the white line by the cold and heater is not hot but pretty warm . Any ideas what this could be ? Thermostat , air lock , water pump , blocked heater matrix ? Quote Link to comment Share on other sites More sharing options...
RedLineMike Posted December 12, 2019 Share Posted December 12, 2019 should run with the guage in the middle of the sweep heater on full chat should be Hot, does the temperature come up when you give it a bit of a hammer? Quote Link to comment Share on other sites More sharing options...
bear Posted December 12, 2019 Share Posted December 12, 2019 My 2004 TD5 runs with the temp gauge half way up. Do the hoses get hot? especially the top hose. If not, first suspect is the thermostat. Make sure it's replaced correctly. Griff Quote Link to comment Share on other sites More sharing options...
Matt2e0fgx Posted December 12, 2019 Author Share Posted December 12, 2019 Replaced correctly ? What you mean ? Never took one apart on a d2 so wouldn't know what looks like . One done a o ring or a seal around the thermostat that pushes into housing and a gasket or o ring to seal . Quote Link to comment Share on other sites More sharing options...
Simon_CSK Posted December 12, 2019 Share Posted December 12, 2019 My car gets toast warm and sometime I cannot stand how hot it is in the cab and need to reduce the temperature. I do like it hot most of the time. Quote Link to comment Share on other sites More sharing options...
RedLineMike Posted December 12, 2019 Share Posted December 12, 2019 15 minutes ago, Matt2e0fgx said: Replaced correctly ? What you mean ? Never took one apart on a d2 so wouldn't know what looks like . One done a o ring or a seal around the thermostat that pushes into housing and a gasket or o ring to seal . thermostat is best described as being heart shaped, it is mounted to the radiator cowling between the top & bottom hose essentially , 3 hose clips & easy to change, Quote Link to comment Share on other sites More sharing options...
bear Posted December 16, 2019 Share Posted December 16, 2019 On 12/12/2019 at 6:18 PM, Matt2e0fgx said: Replaced correctly ? What you mean ? Never took one apart on a d2 so wouldn't know what looks like . One done a o ring or a seal around the thermostat that pushes into housing and a gasket or o ring to seal . If you look at the thermostat you'll see there are 2 ports on one side and one on the other. Make sure you get the 2 port side the correct way round. Quote Link to comment Share on other sites More sharing options...
Matt2e0fgx Posted December 17, 2019 Author Share Posted December 17, 2019 I thought that would be obvious ? You take it off and replace pipes to where came off . I did replace the water pump at the weekend and I run after without the viscous fan on and the gauge did raise to midway in the gauge. Quote Link to comment Share on other sites More sharing options...
JUKE179r Posted December 17, 2019 Share Posted December 17, 2019 Get an UltraGauge or a good diagnostic tester to monitor your temps in digits. Quote Link to comment Share on other sites More sharing options...
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