Just got saab 900s 2.0 petrol non turbo on a 98 plate ,is the old motor with dizzy cap ,fuel gauge stuck on full and no temp gauge ,whers best place to start look

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

I had the same problem with my `98 900S several years ago. In my case it would always start working again after it sat overnight or so.. Unfortunately I never figured out a lasting solution. I think that it had something to do with carbon deposits on electrical contacts or the motor that moves the glass getting old and tired. Very difficult and expensive to repair in the case of the motor. You are probably better off just waiting until it does shut one day and then do your best to leave it that way.

old post and no symptoms, what reads wrong? or? scan fails or gauge? what?
for efi or the dash guage.? SAAB (2 "A"s?)
most newer cars is one sensor for both, FSM show this
as does alldata.com
ill answer for ECT.

2.0Liter. (google shows 500k hits but sure takes time to find it)
do you see the top rad hose, and it goes to the thermostat housing
and on said housing is the ECT.
this is for ECU usage. only. but ECU may repeat it to dash gauge.

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

change your fuel filter and check the fuel pressure on the fuel pump you may have gotten some bad fuel try some STP gas treatment make sure you have a half tank of gas and add a little more go somewhere you can drive 55MPH give these websites a try www.alldatadiy.com and www.autozone.com wish you the best of luck Michigan Man.

go to your local saab or gm autostore i would go to my gm store as you know gm own saab and fit it also fits this engine to saab get the oil seal for your lower distributer fit and it should be ok.adrian;;;

I had the same problem. A spring in the gear change selector had broken making it impossible to get into reverse and very difficult into first to fifth. Simple repair. Might be similar to your problem

Have you tried replacing the coolant temp sensor?

the turbo waste gate has vacuum to it regulated to make it open at a specific psi... try turbo city in anaheim,Ca for more answers to aftermarket stuff

you should check your fuel pressure and be sure it is within spec, is this a 2.0T or a 2.3 non turbo and also this is fuel injected correct? same as the U.S.A. 97 saab 900s? if it is a 2.0 with direct ignition try changing out the DI cassette with a friend or junkyard unit to see if that solves it -Jeff also please rate