1990 Saab 9000 - Answered Questions & Fixed issues

its possible the valve at the end of the vacuum hose where it enter,s the booster i s faulty, otherwise the booster is leaking

14 is fuel pump.22 is hazard warning lights 23 engine system test.

try the inhibitor switch cmmon problem in saabs according to my mechanic

I can show a picture and that is about it. Just follow the line to the frul tank under the car and back.

If you can't get from previous owver, then dealer is only way to get code. Should cost around $100.

See www.saabservices.com and look for abs light link. Be sure you are on the correct page for cars with an accumulator.
I think the washer bottle is removed after taking out the inner fenderwell.

will need to remove heater core and replace.

may be fose or ignation switch or you get no power until 2 stage.

since you have done all that and it does make sense to what you have done,the next step is you have to have fuel to make boost please check your fuel preasure ,

is there power and ground at the fan connector? 2 pin at back of fan housing. ck with volt meter or test light.

very likely it is the speedo sending unit on the transmission, I would ck wiring also

The commmon thing is GROUND.
Probably the ground strap from the engine to the chassis is worn, broken, loose, corroded, or otherwise not making good ground.
Check the negative cable on the battery to see if the "pigtail" is disconnected.

Replace or install a ground strap from the engine to the chassis.

Do that first; otherwise, on the positive side, the inline 100Amp FuseLink may be blown.

Hope this helps!

it could be anything. fuel pump might be going bad, could be a short, could be alt. going out, could be a loose connection. check all wires from alt. and check wires going to the coil. start it, DON'T grab any wires coming out of the coil, but grab a wiring harness and jiggle it around. if it dies, its a short.

You need to have someone check and see if vacuum is getting to the brake booster. If it is getting vacuum you will have to have the booster replaced.

Check the battery, alternator, and fuel pump.  More than likely it will be one of those three.

Try a fitting a good used Airflow sensor. (Its the large plastic thing on air inlet pipe).

Go to Dayco serpentine belt diagrams online.

Common issue on ZF transmissions. Reverse clutch failed and the only way is overhaul/change transmission :(

If the starter is left in the engaged position ( trying to start the engine) the first thing to fail will be the pinion over-ride clutch and then the armature wires melt out and the starter is dead.. If it costs you a new starter motor that will be an expensive lesson for you to fix problems when they occur and not leave it for RON (lat-er -RON)

NO, these are put on cars to stop them from being stolen