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| 91 geo metro thermostat | |
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| Tweet Topic Started: Nov 29 2016, 10:36 PM (416 Views) | |
| Jamez | Nov 29 2016, 10:36 PM Post #1 |
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Dumb question but do these geo metros run different without a thermostat ? Found out mine does not have one when I got it and idles a bit higher than normal , Also the blower motor does not come on in any fan position ? Relays and fuses good. Any diag steps to test that ? Sorry again for the dumb question lol |
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| ptcapboy | Nov 30 2016, 12:00 AM Post #2 |
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na, the only "dumb question" is an unasked one-I would say that yes these engines do run different without the thermostat because that can cause them to run in an open loop which will effect how they run-maybe myredvert will chime in he's the man for ecm stuff-very knowledgeable-as for the blower maybe you can straight wire it to the battery to see if it comes on, if it does check your switch |
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| freegeo | Nov 30 2016, 04:05 AM Post #3 |
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Running the engine without a thermostat can cause it to run somewhat different. The stock thermostat temp rating is a 190. |
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| idmetro | Nov 30 2016, 07:59 AM Post #4 |
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Blower motor could be the the switch itself (highly likely), the blower motor resistor (modestly likely) or the motor itself (far less likely but it does happen). First thing I would do is check for voltage at the fan motor electrical connector. |
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| sphenicie | Nov 30 2016, 09:08 AM Post #5 |
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it is also important to have the correct stat.......there are two options, one (95+) runs a rubber seal and the other does not. without a stat your engine will be slow to warm up, may not warm up in cold weather, (cold= +/- 20 DF). the incorrect warming will effect how long the ECU will keep you in the "choke" mode. |
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| Stubby79 | Dec 1 2016, 11:16 AM Post #6 |
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If you're lucky, someone was just too cheap to replace a failing thermostat, or didn't think the do a cooling flush to fix poor cooling by the radiator. If you're unlucky, you'll put one in and discover there was a reason it was pulled when it overheats one sunny afternoon, in which case you now have to figure it out before it does any (more) damage... |
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| Jamez | Dec 1 2016, 07:04 PM Post #7 |
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Thank you all for the responses !! This is my first metro , sadly having to replace the fuel pump as it tested at 12 psi running and 12 psi engine off key on its a 1991 geo metro . At least the engine is freshly rebuilt ! Lol |
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