20 Most Recent 1991 Saab 900 Questions & Answers

clutch hydraulic system has failed low fluid levels , air in system,problem clutch master cylinder will cause the indicated problems take it to a clutch/brake specialist shop and get a proper diagnosis and quote

could be a buildup despite pressure, try a fuel cleaner.

Did you check the oil pressure switch? Are you getting a low oil light?

a 1991 900 S. does not have an automatic button to open anything with the exception of the door locks.

post the readings. does the car overheat?
NOX is caused by combustion temerature being too high. many possible causes. common ones are EGR system, running lean, deffective catylitic.

You need to change all of your wires, there may be one or two of them gone bad. "Check it at nite to see wich one is sparking fire from the wires"..

Do you feel some play between the linkage parts?If it's too much play, then that's the problem

If its the rear seal yes

Sounds like loss of fuel pressure on the injector rails when the engine is turned off. It is taking a while for the pressure to build up so it will start. This is usually caused by a bad check valve in the fuel pump (which requires a fuel pump module to fix) or a defective fuel pressure regulator or a leaking injector.To see if loss of fuel pressure after shut-down is the problem, shut it off and leave it off as long as you usually do. Then, when you get into the vehicle, "cycle" the ignition switch a few times from OFF to ON, then OFF and ON again - repeat 3 or 4 times (Pre-charge the fuel rails).....THEN crank the engine. If it starts right up, then you know for sure that is WHAT the problem is, then you only have to find the CAUSE.

you havent stated if its automatic or manual but either way its your clutch ,the manual has a dry plate clutch and the auto has a wet clutch and whatever one it is is worn out ,unless your fluid level is low if its a auto

look in the boot behind a panel left side but models do vary ,then look on the motor/resevoir unit and the resevoir will have a screw cap and you fill through the cap to about a inch from the top

you may have the tool in your glove box if not. it takes two horseshoe shaped tools it is round with a notch cutout on the ends you push them in till they lock then pull the radio out when your done just push it back in till it Lock's back in

Have you checked the cam sensor? Test the current at the sensor. It may be the distributor.

FUEL FILTER FOR THIS VEHICLE IS GOING TO BE ON THE MAIN LINE FROM THE TANK. POSSIBLE UNDERNEATH THE VEHICLE OR UNDER THE HOOD CLOSE TO THE FIREWALL

check for power to the key then check power to the coils then check for spark to the motor then check for fuel psi to the motor if the battery is dead than there will be power at all.goodluck

there is a bad ground to the left tail light which is blowing the fuse. also it is possible that there might be corrosion which is providing high resistance which is blowing that fuse