Subaru cars Posted May 18, 2016 Share Posted May 18, 2016 Bought a 93 FWD impreza .does not over heat .both fans are on all the time. Temp gauge reads half way.but gets way to hot inside car even with temp control set to cold .any help or suggestion.! Coolant is full and good Link to comment Share on other sites More sharing options...
Subaru cars Posted May 18, 2016 Author Share Posted May 18, 2016 Did research .thinking bad radiator Link to comment Share on other sites More sharing options...
Subaru cars Posted May 18, 2016 Author Share Posted May 18, 2016 Or would a flush out work? Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted May 18, 2016 Share Posted May 18, 2016 might be a stuck blend door - I think hot coolant goes thru all the time? (not sure on older cars) and it's just modulated/blocked by a flap. Link to comment Share on other sites More sharing options...
Subaru cars Posted May 18, 2016 Author Share Posted May 18, 2016 Yes thinking that also will check before buying radiator.temp control works but cold or hot still very hot inside.finally getting warm around here thanks Link to comment Share on other sites More sharing options...
Subaru cars Posted May 18, 2016 Author Share Posted May 18, 2016 Strange thing is a ground wire from relay under the hood.thinking. Is wired to run both fans.so problem has been there awhile Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 19, 2016 Share Posted May 19, 2016 Change the thermostat with a Subaru OE or equivalent design like Gates 34012. Check inside the radiator for any buildup in the cores. Check the outside fins of the radiator for any dirt/leaves/other crud stuck in it. Fans running constantly can keep the thermostat partially closed all the time and cause coolant to run full flow through the heater core all the time. Coolant constantly runs through the heater core anyway, but the flow is almost stopped when the thermostat is fully open the way it should be. Possibly the fans were not turning on at all before, so the PO wires them to run all the time. May be due to a bad temp sensor. Link to comment Share on other sites More sharing options...
Subaru cars Posted May 19, 2016 Author Share Posted May 19, 2016 Ok.thanks good suggestion Link to comment Share on other sites More sharing options...
Subaru cars Posted May 20, 2016 Author Share Posted May 20, 2016 Dumb question .which does thermostate go point up or down Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 20, 2016 Share Posted May 20, 2016 Only fits one way. Link to comment Share on other sites More sharing options...
Subaru cars Posted May 20, 2016 Author Share Posted May 20, 2016 Yes after 2 hrs figured it out.flush out etc... The cable is bad. That lets cool or hot air in.vent was open.radiator .thermostat good.so if anyone has problem .check vent door first Link to comment Share on other sites More sharing options...
Subaru cars Posted May 20, 2016 Author Share Posted May 20, 2016 What is that cable called Link to comment Share on other sites More sharing options...
Subaru cars Posted May 22, 2016 Author Share Posted May 22, 2016 Refresh my memory where is the sensor that control the fans when temp goes up.both my fans are on all the time Link to comment Share on other sites More sharing options...
Fairtax4me Posted May 22, 2016 Share Posted May 22, 2016 Under the manifold on the right rear side. Not sure exactly what the cable is called. Probably gonna have to find that in a junkyard or check the classifieds here. Link to comment Share on other sites More sharing options...
Subaru cars Posted May 22, 2016 Author Share Posted May 22, 2016 Thanks Link to comment Share on other sites More sharing options...
Subaru cars Posted May 22, 2016 Author Share Posted May 22, 2016 Seems that the relay is grounded out .with ground wire so will check .ground and relay. both fans running all the time is ok.but not necessary. Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted May 23, 2016 Share Posted May 23, 2016 Seems that the relay is grounded out .with ground wire so will check .ground and relay. both fans running all the time is ok.but not necessary. someone did that for a reason so, be prepared to troubleshoot the system and repair properly. Link to comment Share on other sites More sharing options...
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