Water temp gauge for 1997 saab 900s in not working.

see if this forum helps you out.... https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=1993+Saab+900s+temp+gauge+just+completely+stopped

The fuel gage is most likely the fuel level sending unit inside the fuel tank, the temp could be wiring or the temp sending unit on the engine, try that first.

Google: saab 900s 1997 picture of engine number

i had the same problem...i replaced battery with a heavy duty battery...it now works and is faster...

Try to tightin up the light bulb. be aware the only way to do this is to remove the hole dash. if you do not know how to do this i would recamend you take it to a shop are ask me to go through step by step directions.

you need to remove the unit to see the serials no.send the serials to my(may can help)

you know where the windshield washer fluid tank is ? if so remove it the windshield washer pump is located at the bottom of it.

Oil change interval has nothing to do with operating temperature. If your coolant is full, feel the upper radiator hose, when the vehicle is up to temp. if cool , thermostat is back from that hose,

Look for air bleeds, and read owners manual, some cars have coolant bleeds. Also, heater on high when filling coolant or risk bubbles...

My thought is that your fans may not be kicking in. They should cycle on and keep temp low enough. test them.

The switch needs to be replaced and it requires some special tools if it's in the steering column. If it's on the floor any shade tree mechanic can do it.

I'm afraid if you don't have the code, you will have to take it to a local dealer or specialist radio store to have it re-coded.

Fortunately, it's not expensive.