KAlsteen Posted March 1, 2013 Report Share Posted March 1, 2013 I'm just wondering when a 1995 3.1L warms up completely what is the normal temp it should be at? Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted March 1, 2013 Report Share Posted March 1, 2013 what you see on the guage isn't always reality.... those senders weren't always very accurate. if you grab actual data from the PCM, around 195 is normal. Quote Link to comment Share on other sites More sharing options...
KAlsteen Posted March 1, 2013 Author Report Share Posted March 1, 2013 Mine is reading at slightly above 100 and my heat isn't very hot. It's warm enough to defrost the windows but my previous car (1999 Grand Am) I would have the heat on for about a half hour on high and then have to turn it down because it got too warm blasting on me. That doesn't happen with my GP. How can I get the actual temp from the PCM? (Sorry if that is a dumb question) Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted March 1, 2013 Report Share Posted March 1, 2013 probably just a worn out thermostat then, it happens. costs a whole ~$5 to replace too. you'll probably make that back within your second or third full tank of fuel too, since fuel economy will drop at lower coolant temps. getting the temp from the PCM would require a scanner capable of reading the car's datastream or with an ALDL cable. Quote Link to comment Share on other sites More sharing options...
alec_b Posted March 1, 2013 Report Share Posted March 1, 2013 Have fun doing the 'stat on a 3100! Sounds like that's your problem though. Temp gauge doesn't move + no heat = stuck open thermostat. Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted March 1, 2013 Report Share Posted March 1, 2013 i think it took me 30 minutes? and i never needed to bleed the system either. Quote Link to comment Share on other sites More sharing options...
Galaxie500XL Posted March 1, 2013 Report Share Posted March 1, 2013 The thermostats are designed to stay open when they fail...makes perfect sense. Quote Link to comment Share on other sites More sharing options...
Schurkey Posted March 1, 2013 Report Share Posted March 1, 2013 The thermostats are designed to stay open when they fail...makes perfect sense. A thermostat is just as likely to stick shut as to stick open. It can fail either way. Don't be misled by the advertising for a certain specialty thermostat that has a locking mechanism--if the vehicle overheats due to a problem OTHER than a defective thermostat, the thermostat locks open. This useless bit of engineering is sold under the "Failsafe" brand name. Quote Link to comment Share on other sites More sharing options...
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