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95 legacy engine temp. gauge puzzle
Posted 17 December 2001 - 03:24 PM
Posted 17 December 2001 - 03:43 PM
Any more details would help.
Posted 17 December 2001 - 04:02 PM
Posted 17 December 2001 - 05:04 PM
Since the gauge sometimes indicates hotter than normal and since less ohms measured at the sensor connector register as hotter on the gauge, it's certainly not the connection that's at fault (that would give you more ohms and register as colder on the gauge). So that could mean thermistor element (in the sensor) malfunction or malfunction of the voltage regulator in the gauge itself. I think that rarely happens, but that's a possibility. Since you have to know the exact temp of the engine to effectively test the sensor's resistance range, i think this is not something you can test yourself. Or maybe someone more expert in that department can help you here.
Posted 17 December 2001 - 07:40 PM
I'm still thinking thermostat--- WHICH one did the dealer replace?
There is a coolant thermostat that allows the radiator to flow/not flow. There is, I believe (but could be wrong) a separate sensor for operating the fans. Either one of them could cause this problem.
('tis possible that the ECU temp sensor might drive the fans-- I dunno-- but I recall seeing 2 sensors on our 2.2L so I'm sort of doing this as an educated guess.)
Posted 17 December 2001 - 08:15 PM
Posted 17 December 2001 - 10:06 PM
Posted 18 December 2001 - 08:15 AM
Posted 18 December 2001 - 08:42 AM
I may go ahead and replace hoses as well as thermostat. Advice and pointers will be much apperciated!
Posted 18 December 2001 - 09:57 AM
Posted 18 December 2001 - 10:34 AM
Posted 18 December 2001 - 12:37 PM
Again, I don't know if it applies to you, but just a word of caution.
Posted 18 December 2001 - 01:18 PM
also, read old posts about "burping" air out of system.
For grins, when temp seems to rise, turn ON A/C and if cools, may be due to the fan that runs on the radiator when the A/C is on(my leagacy 91 has 2 fans, one to come on when temp gets hot and one to run when A/C is on). Also, trn on heater, is air normal hot or hotter than hell? may give you clue if temp gauge is reading properly.
Posted 18 December 2001 - 01:42 PM
Also, thanks for the heads up concerning the thermostat orientation, I will be sure to pay attention to that.
Posted 18 December 2001 - 02:14 PM
Posted 18 December 2001 - 04:38 PM
Posted 18 December 2001 - 08:30 PM
Hopefully the drive to work tomorrow will be uneventful.
Thanks for all the info and interest, I will add a posting tomorrow night.
Posted 18 December 2001 - 08:59 PM
Posted 18 December 2001 - 09:22 PM
So, hopefully I am ready to go.
Posted 19 December 2001 - 09:44 PM
One thing about the thermostat that I removed from the car, it was nothing like the OEM stat that I purchased at the soob dealer. It was smaller and the base was round. Since this stat was the one installed by the dealer in June, it makes me wonder about if subaru has more than style of thermostats, or did the dealership install a non OEM stat in my car?? Anyway, the temp seems good now.
Posted 19 December 2001 - 09:59 PM
I would personally go back and bitch at the dealer....but hey that's me
If you don't see a fuji-heavy industries emblem it's not a subie OEM. It sorta looks like a crooked crescent moon.
Posted 19 December 2001 - 10:20 PM
Again thanks to all for the info, and I'm sure I will be using the site in the future.
Posted 20 December 2001 - 10:42 AM
Posted 20 December 2001 - 11:43 AM
Posted 20 December 2001 - 01:03 PM
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