Question about 1997 Saab 900

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Saab 1997 900 - car suddenly shuts off while driving

For the past few weeks my saab randomly shuts off while I'm driving it. It's an automatic. All of the lights on the panel (check engine, gear box, door ajar, etc) flicker on and off and then the car loses power and shuts off. At first, I could restart it right away but now I can't. When I turn the ignition, the engine turns over but it won't start up. 
The first indication of a problem was that my door ajar light was on for about a week- there wasn't an open door. It stayed on for about a week and then the car started shutting itself off.
I just had my 100k tune up. The car was in great condition and I haven't had any problems with it until now. My mechanic checked the battery connection, fuses and relays. It worked for a day and then started acting up again. Any advice or suggestions would be greatly appreciated!!! Thanks is advance

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I have been trying to figure out the same on my 95' Saab 900 V6 . I am a Mechanic and this thing has been a real Pickle if you know what I mean/ I pulled the ignition switch and the contacts on the plug were corroded and suspect that I am not getting a good enough contact inside the unit . (The reason why I have not suspected this is because it was replaced in 03' with a new one, but the way in it mounted vertically has got to be a reason for corrosion.)Might have been due to the sunroof been left open in the rain. So I would suggest replacing the IGNITION SWTICH with a new one, or used (with warranty i.e. Ebay) one if possible. Also put some Electrical tape on the new unti so it will never get any moisture inside>

Posted on Jun 27, 2009

  • pctech76
    pctech76 Dec 26, 2012

    I think you are on the right track the same thing is happening to me check the linkhttp://youtu.be/PlL7I12YFCwi got the ignition switch took it out and found the inside pristine- no moisture but i did seal it in electrical tape because of moistur in cabin-

  • pctech76
    pctech76 Nov 12, 2013

    Add a Comment2 years later new starter new alt new distributor cap new rotor new spark plugs still same problem starts and dies!?!

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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Saaboheme
  • 76 Answers

SOURCE: 1993 saab 900 belt diagram

Sorry, I don't have access to a Bentley now. There are 4 belts, 2 for alternator etc, 1 for aircon and 1 for pwr steering.
The power steering belt goes round the power steering pump & crank pulley only.
The paired belts go round crank pulley, alternator and water pump.
The aircon belt goes round crank pulley, aircon compressor and tensioner.
Alternator / water pump pair are closest to the engine.
Power steering is in the middle (with aircon) or closest to the bulkhead (without aircon).
Aircon (if fitted) is closest to the bulkhead.

(1) If you do not have an AC compressor, skip this step and go to step 2. If you dohave one, begin by cutting any cable ties that hold the main wiringharness to the AC hoses. Lift the harness up and over onto the camcover until it's near the PCV valve, and is now out of your way.

All nuts & bolts in this step are 13 mm.

Then, slacken the 2 bolts attaching the AC tensioner pulley mount (athick triangular steel plate) to the head. Use a long box wrench (ringspanner, in Englishicon_cheesygrin.gif ).

Using a deep-wall socket (or an offset ratchet wrench, or plain wrench)on the adjuster nut, back it off until there's no more tension in thebelt (you won't be able to remove the belt yet, though).

Now, remove the upper of the 2 mounting bolts and its washer, and pivot the tensioner down; remove the belt.

Remove the lower bolt, and lift out the tensioner. Look the triangularplate over for cracks, and spin the pulley to see if its bearing issmooth and quiet. (If you find problems, the pulley is about $15 and www.eeuroparts.com sells the entiretensioner assembly for something like $70.) Back off the adjuster nutuntil it's about 1/4" (1/2 cm) from the end of its threaded rod (usevise-grips to clamp the rod's other end onto the triangular plate, orput the whole thing in a vise).

(2) Slacken the bolt and nut holding the power steering pump to thehead and to the RH engine mount, respectively. Slacken the adjuster nut(yes, anotherthreaded-rod type thing) by about 1/2" (1 cm). You can use a normalwrench for this, but it takes forever--so I made a special tool bytaking a cheapo 13 mm open-jaw wrench and bending it to a 45-degreeangle just below the jaws (cut it to length if it's too hard tomaneuver). Loosen the mounting nut until it's almost off (but not completely off,or you'll lose the bolt it screws onto--this bolt was designed to fallout when the nut is removed). Pull the nut end of the threaded rodtowards the firewall to get it of the adjuster fork. Push the pumptowards the engine centerline and pull its belt off (you may need topry with a screwdriver to get it out of the pump pulley completely).

(3) Slacken the 16 mm nut on top of the alternator. Back off the alt.adjuster's 10 mm nut about 1/2" (1 cm)--a ratcheting wrench helps here.(This is the last threaded rod--I promise.) Completely remove the 16 mmnut, and pull the adjuster towards the firewall until it's out of thealt.

Now for the clever part: Cut yourself a wedge from a piece of wood (2 x4 is perfect), with a rise of 3" (8 cm) and a run of about 12" (30 cm).Push the alt. towards the engine, and shove the wedge in between theside of the alt. and the coil-spring tower (master cylinder mountingbracket works, too). Keep pushing the alt. and driving the wedge downuntil the alt. is so close to the engine that it's compressing thelower heater hose.

Pull the outer belt off the alt. pulley. Working from the RH side ofthe car, lift the belt off the water pump pulley and then disengage itfrom the crank pulley. Now, pull the inner belt into the outergroove of the water pump pulley. Go back to the LH side of the car, andmove the inner belt into the alt. pulley's outer groove. Try removingit from this pulley; if too difficult, either wedge the alt. closer tothe engine or try pulling the belt off the water pump pulley from theRH side of the car (a helper is very useful for all this).

(4) Install the new inner belt by fitting it into its groove in thecrank pulley first. Work it into the outer grooves of the alt. andwater pump pulleys, then into the inner ones. Install the outerbelt--again, first onto the crank pulley, then the water pump and alt.pulleys.

Remove wedge. Insert tensioner into alt. making sure the threaded rodsettles into its fork, and refit its 16 mm nut--but don't fully tightenit yet. Tighten 10 mm adjuster nut until belts can be pushed in only1/2" (1 cm) by thumb pressure (applied 1/2 way between water pump andcrank pulleys).

(5) Push PS pump as close to engine centerline as possible, andfinger-tighten its mounting bolt to hold it there. Fit a new beltaround the crank pulley first, then work it into the pump pulley groovefrom the bottom of the pulley until it pops in. You may need to use both hands, and/or carefully pry the belt on with a screwdriver.

Loosen the bolt you just tightened. Pull the pump away from enginecenterline, insert threaded rod into its fork (you may have to back theadjuster nut off some more), tighten the mounting nut (but notcompletely), and screw in the adjuster nut until the belt deflects asdescribed in (4) above.

(6) Start the engine. Blip throttle, watching the belts deflect as theengine speed goes up and down. If the "blur" you see midway down eachbelt is over 1" (2 cm) wide, tighten the belt(s) until it isn't. Tighten the PS pump mounting nut and bolt, and the 16mm nut on the alt.

If your car doesn't have AC, your belt replacement is over!

(7) If you haveAC, reattach the tensioner to the head with the lower bolt only (andleave this bolt finger-tight). Fit the new belt around the crankpulley, then around the compressor pulley and, finally, around thetensioner.

Reinstall the top tensioner bolt and its washer. Be careful and patienthere--you're threading a steel bolt into aluminum, so make sure it goesin straight. You may have to back off the tensioner nut a little. Leavethis bolt finger-tight.

Screw in the adjuster nut to get the deflection as described in (4)above. Start the engine, and blip the throttle. Watch belt's "blur" on LHside of engine. Adjust as in (6). Switch on compressor, and repeat.

If satisfied, tighten the 2 tensioner bolts. Return wiring harness toits original position, and re-secure with cable ties if needed.

Posted on Dec 16, 2008

rockitman187
  • 2559 Answers

SOURCE: how do you read the oil dip stick on a 1996 saab 900

Just go by the marks,Pull the dipstick,wipe it,reinsert it,pull it agian and read it.Please rate this a fixya

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Posted on Feb 13, 2009

  • 83 Answers

SOURCE: I need an engine diagram for a 1995 saab 900 se V6

A SAAB dealer should be able to print one out for you. BTW that engine is practically identical to the V6 used in a caddy Catera, and Saturn Ion. Those diagrams would be the same, so you might want to search that also.

Posted on Mar 25, 2009

Saaboheme
  • 76 Answers

SOURCE: what type of oil on 97 saab 900

If turbo in a temperate climate, use 0W40 or 5W40 synth for year round protection. If naturally aspirated, you can use the same or 5W30. If you live a particularly hot climate, 10W40 will work just fine too, and you might even be well off to go to 10W50, at least in the hottest months. Turbos generate a lot of extra heat which contributes to quick long chain molecule shear down in multi- viscosity oils. Accordingly, a 40 wt oil will quickly thin down to something more like a 30 weight oil. Oil pressure in these cars is marginal at idle, so keeping a close eye on good viscosity is pretty important, as that helps keep pressure up.

Posted on Apr 29, 2009

Saaboheme
  • 76 Answers

SOURCE: reading the gauge on the oil dipstick 1998 saab 900

The dip stick end should have a plastic square piece with two roundish bulbs on each end. The oil level should read just at the bottom of the top bulb (the bulb nearest the yellow cap at the top end of the dip stick). This indicates full. A level reading anywhere between the two bulbs is adequate but not optimal. Oil below the top end of the bottom bulb, means 1 quart low, and no oil at all on the bottom bulb means get some oil in there double quick.

Posted on May 06, 2009

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