X2Logic Posted June 2, 2016 Share Posted June 2, 2016 Hey Gang, Our family has an 87 1.8L GL wagon. My father is the original owner. Over the years, he's had the engine replaced. Ever since its replacement, the engine will not auto warm up like it used to. I recall when cold, engine would rev to about 2K rpms until reaching operating temperature then it would drop back to normal idle. Can anyone suggest what device controls this feature? I would like to get it functioning again. Thanks! Link to comment Share on other sites More sharing options...
DaveT Posted June 2, 2016 Share Posted June 2, 2016 Coolant temperature sensor could cause that. 2 wire sensor under thermostat . 1 Link to comment Share on other sites More sharing options...
X2Logic Posted June 3, 2016 Author Share Posted June 3, 2016 Thanks Dave! Link to comment Share on other sites More sharing options...
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